v0.76.x preview

Merge pull request #2251 from zed-industries/clear-follow-state-on-project-close
Update db followers table when user leaves a project
2023-03-08 13:25:18 -05:00 · 2023-03-07 19:09:09 -05:00 · 2023-03-07 18:56:03 -05:00 · 2023-03-07 12:30:20 -05:00 · 2023-03-07 12:23:18 -05:00 · 2023-03-06 18:49:26 -08:00
468 changed files with 29435 additions and 16627 deletions
--- a/.dockerignore
+++ b/.dockerignore
@@ -8,4 +8,4 @@ crates/collab/static/styles.css
 vendor/bin
 assets/themes/*.json
 assets/themes/internal/*.json
-assets/themes/experiments/*.json
+assets/themes/staff/*.json
--- a/.github/pull_request_template.md
+++ b/.github/pull_request_template.md
@@ -1,6 +1,6 @@
 ## Description of feature or change

-## Link to related issues from zed or insiders
+## Link to related issues from zed or community

 ## Before Merging 

--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -4,7 +4,7 @@ on:
  push:
    branches:
      - main
-      - "v*"
+      - "v[0-9]+.[0-9]+.x"
    tags:
      - "v*"
  pull_request:
@@ -17,6 +17,26 @@ env:
  RUST_BACKTRACE: 1

 jobs:
+  rustfmt:
+    name: Check formatting
+    runs-on:
+      - self-hosted
+      - test
+    steps:
+      - name: Install Rust
+        run: |
+          rustup set profile minimal
+          rustup update stable
+
+      - name: Checkout repo
+        uses: actions/checkout@v2
+        with:
+          clean: false
+          submodules: 'recursive'
+
+      - name: cargo fmt
+        run: cargo fmt --all -- --check
+
  tests:
    name: Run tests
    runs-on:
@@ -41,16 +61,22 @@ jobs:
        with:
          clean: false
          submodules: 'recursive'
-            
+
+      - name: Run check
+        run: cargo check --workspace
+
      - name: Run tests
        run: cargo test --workspace --no-fail-fast
-    
+
      - name: Build collab
        run: cargo build -p collab

      - name: Build other binaries
        run: cargo build --workspace --bins --all-features

+      - name: Generate license file
+        run: script/generate-licenses
+
  bundle:
    name: Bundle app
    runs-on:
@@ -109,6 +135,9 @@ jobs:
            exit 1
          fi

+      - name: Generate license file
+        run: script/generate-licenses
+
      - name: Create app bundle
        run: script/bundle

--- a/.github/workflows/release_actions.yml
+++ b/.github/workflows/release_actions.yml
@@ -13,12 +13,12 @@ jobs:
        webhook-url: ${{ secrets.DISCORD_WEBHOOK_URL }}
        content: |
          📣 Zed ${{ github.event.release.tag_name }} was just released!
-          
+
          Restart your Zed or head to https://zed.dev/releases/latest to grab it.
-        
+
          ```md
          # Changelog
-          
+
          ${{ github.event.release.body }}
          ```
  mixpanel_release:
@@ -31,7 +31,7 @@ jobs:
          architecture: "x64"
          cache: "pip"
      - run: pip install -r script/mixpanel_release/requirements.txt
-      - run: > 
+      - run: >
          python script/mixpanel_release/main.py
          ${{ github.event.release.tag_name }}
          ${{ secrets.MIXPANEL_PROJECT_ID }}
--- a/.gitignore
+++ b/.gitignore
@@ -7,8 +7,8 @@
 /crates/collab/static/styles.css
 /vendor/bin
 /assets/themes/*.json
-/assets/themes/Internal/*.json
-/assets/themes/Experiments/*.json
+/assets/*licenses.md
+/assets/themes/staff/*.json
 **/venv
 .build
 Packages
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -259,6 +259,21 @@ dependencies = [
 "futures-lite",
 ]

+[[package]]
+name = "async-global-executor"
+version = "2.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f1b6f5d7df27bd294849f8eec66ecfc63d11814df7a4f5d74168a2394467b776"
+dependencies = [
+ "async-channel",
+ "async-executor",
+ "async-io",
+ "async-lock",
+ "blocking",
+ "futures-lite",
+ "once_cell",
+]
+
 [[package]]
 name = "async-io"
 version = "1.12.0"
@@ -350,6 +365,32 @@ dependencies = [
 "syn",
 ]

+[[package]]
+name = "async-std"
+version = "1.12.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "62565bb4402e926b29953c785397c6dc0391b7b446e45008b0049eb43cec6f5d"
+dependencies = [
+ "async-channel",
+ "async-global-executor",
+ "async-io",
+ "async-lock",
+ "crossbeam-utils 0.8.14",
+ "futures-channel",
+ "futures-core",
+ "futures-io",
+ "futures-lite",
+ "gloo-timers",
+ "kv-log-macro",
+ "log",
+ "memchr",
+ "once_cell",
+ "pin-project-lite 0.2.9",
+ "pin-utils",
+ "slab",
+ "wasm-bindgen-futures",
+]
+
 [[package]]
 name = "async-stream"
 version = "0.3.3"
@@ -371,6 +412,20 @@ dependencies = [
 "syn",
 ]

+[[package]]
+name = "async-tar"
+version = "0.4.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5c49359998a76e32ef6e870dbc079ebad8f1e53e8441c5dd39d27b44493fe331"
+dependencies = [
+ "async-std",
+ "filetime",
+ "libc",
+ "pin-project",
+ "redox_syscall",
+ "xattr",
+]
+
 [[package]]
 name = "async-task"
 version = "4.0.3"
@@ -739,8 +794,7 @@ dependencies = [
 [[package]]
 name = "bromberg_sl2"
 version = "0.6.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2ed88064f69518b7e3ea50ecfc1b61d43f19248618a377b95ae5c8b611134d4d"
+source = "git+https://github.com/zed-industries/bromberg_sl2?rev=950bc5482c216c395049ae33ae4501e08975f17f#950bc5482c216c395049ae33ae4501e08975f17f"
 dependencies = [
 "digest 0.9.0",
 "lazy_static",
@@ -820,12 +874,16 @@ dependencies = [
 "async-broadcast",
 "client",
 "collections",
+ "fs",
 "futures 0.3.25",
 "gpui",
+ "language",
 "live_kit_client",
+ "log",
 "media",
 "postage",
 "project",
+ "settings",
 "util",
 ]

@@ -1130,7 +1188,7 @@ dependencies = [

 [[package]]
 name = "collab"
-version = "0.3.4"
+version = "0.6.1"
 dependencies = [
 "anyhow",
 "async-tungstenite",
@@ -1194,10 +1252,12 @@ name = "collab_ui"
 version = "0.1.0"
 dependencies = [
 "anyhow",
+ "auto_update",
 "call",
 "client",
 "clock",
 "collections",
+ "context_menu",
 "editor",
 "futures 0.3.25",
 "fuzzy",
@@ -1273,6 +1333,7 @@ source = "git+https://github.com/servo/core-foundation-rs?rev=079665882507dd5e2f
 dependencies = [
 "core-foundation-sys",
 "libc",
+ "uuid 0.5.1",
 ]

 [[package]]
@@ -1897,6 +1958,7 @@ dependencies = [
 "tree-sitter-html",
 "tree-sitter-javascript",
 "tree-sitter-rust",
+ "tree-sitter-typescript 0.20.2",
 "unindent",
 "util",
 "workspace",
@@ -2019,6 +2081,33 @@ dependencies = [
 "instant",
 ]

+[[package]]
+name = "feedback"
+version = "0.1.0"
+dependencies = [
+ "anyhow",
+ "client",
+ "editor",
+ "futures 0.3.25",
+ "gpui",
+ "human_bytes",
+ "isahc",
+ "language",
+ "lazy_static",
+ "log",
+ "postage",
+ "project",
+ "search",
+ "serde",
+ "settings",
+ "sysinfo",
+ "theme",
+ "tree-sitter-markdown",
+ "urlencoding",
+ "util",
+ "workspace",
+]
+
 [[package]]
 name = "file-per-thread-logger"
 version = "0.1.5"
@@ -2049,6 +2138,18 @@ dependencies = [
 "workspace",
 ]

+[[package]]
+name = "filetime"
+version = "0.2.19"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4e884668cd0c7480504233e951174ddc3b382f7c2666e3b7310b5c4e7b0c37f9"
+dependencies = [
+ "cfg-if 1.0.0",
+ "libc",
+ "redox_syscall",
+ "windows-sys 0.42.0",
+]
+
 [[package]]
 name = "fixedbitset"
 version = "0.4.2"
@@ -2497,6 +2598,18 @@ dependencies = [
 "regex",
 ]

+[[package]]
+name = "gloo-timers"
+version = "0.2.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9b995a66bb87bebce9a0f4a95aed01daca4872c050bfcb21653361c03bc35e5c"
+dependencies = [
+ "futures-channel",
+ "futures-core",
+ "js-sys",
+ "wasm-bindgen",
+]
+
 [[package]]
 name = "go_to_line"
 version = "0.1.0"
@@ -2560,9 +2673,9 @@ dependencies = [
 "sum_tree",
 "time 0.3.17",
 "tiny-skia",
- "tree-sitter",
 "usvg",
 "util",
+ "uuid 1.2.2",
 "waker-fn",
 ]

@@ -2756,6 +2869,12 @@ version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c4a1e36c821dbe04574f602848a19f742f4fb3c98d40449f11bcad18d6b17421"

+[[package]]
+name = "human_bytes"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "39b528196c838e8b3da8b665e08c30958a6f2ede91d79f2ffcd0d4664b9c64eb"
+
 [[package]]
 name = "humantime"
 version = "2.1.0"
@@ -3107,6 +3226,15 @@ dependencies = [
 "arrayvec 0.7.2",
 ]

+[[package]]
+name = "kv-log-macro"
+version = "1.0.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0de8b303297635ad57c9f5059fd9cee7a47f8e8daa09df0fcd07dd39fb22977f"
+dependencies = [
+ "log",
+]
+
 [[package]]
 name = "language"
 version = "0.1.0"
@@ -3124,6 +3252,7 @@ dependencies = [
 "fuzzy",
 "git",
 "gpui",
+ "indoc",
 "lazy_static",
 "log",
 "lsp",
@@ -3146,10 +3275,12 @@ dependencies = [
 "tree-sitter-html",
 "tree-sitter-javascript",
 "tree-sitter-json 0.19.0",
+ "tree-sitter-markdown",
 "tree-sitter-python",
 "tree-sitter-ruby",
 "tree-sitter-rust",
- "tree-sitter-typescript",
+ "tree-sitter-typescript 0.20.1",
+ "unicase",
 "unindent",
 "util",
 ]
@@ -3754,6 +3885,15 @@ dependencies = [
 "winapi 0.3.9",
 ]

+[[package]]
+name = "ntapi"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bc51db7b362b205941f71232e56c625156eb9a929f8cf74a428fd5bc094a4afc"
+dependencies = [
+ "winapi 0.3.9",
+]
+
 [[package]]
 name = "nu-ansi-term"
 version = "0.46.0"
@@ -4423,7 +4563,7 @@ source = "git+https://github.com/zed-industries/wezterm?rev=5cd757e5f2eb039ed0c6
 dependencies = [
 "libc",
 "log",
- "ntapi",
+ "ntapi 0.3.7",
 "winapi 0.3.9",
 ]

@@ -4434,6 +4574,7 @@ dependencies = [
 "aho-corasick",
 "anyhow",
 "async-trait",
+ "backtrace",
 "client",
 "clock",
 "collections",
@@ -4451,6 +4592,7 @@ dependencies = [
 "lsp",
 "parking_lot 0.11.2",
 "postage",
+ "pretty_assertions",
 "pulldown-cmark",
 "rand 0.8.5",
 "regex",
@@ -4806,6 +4948,24 @@ dependencies = [
 "rand_core 0.3.1",
 ]

+[[package]]
+name = "recent_projects"
+version = "0.1.0"
+dependencies = [
+ "db",
+ "editor",
+ "fuzzy",
+ "gpui",
+ "language",
+ "ordered-float",
+ "picker",
+ "postage",
+ "settings",
+ "smol",
+ "text",
+ "workspace",
+]
+
 [[package]]
 name = "redox_syscall"
 version = "0.2.16"
@@ -5475,6 +5635,7 @@ dependencies = [
 "anyhow",
 "collections",
 "editor",
+ "futures 0.3.25",
 "gpui",
 "language",
 "log",
@@ -5485,6 +5646,7 @@ dependencies = [
 "serde_json",
 "settings",
 "smallvec",
+ "smol",
 "theme",
 "unindent",
 "util",
@@ -5948,6 +6110,7 @@ dependencies = [
 "parking_lot 0.11.2",
 "smol",
 "thread_local",
+ "uuid 1.2.2",
 ]

 [[package]]
@@ -6200,6 +6363,21 @@ dependencies = [
 "libc",
 ]

+[[package]]
+name = "sysinfo"
+version = "0.27.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1620f9573034c573376acc550f3b9a2be96daeb08abb3c12c8523e1cee06e80f"
+dependencies = [
+ "cfg-if 1.0.0",
+ "core-foundation-sys",
+ "libc",
+ "ntapi 0.4.0",
+ "once_cell",
+ "rayon",
+ "winapi 0.3.9",
+]
+
 [[package]]
 name = "system-interface"
 version = "0.20.0"
@@ -6382,6 +6560,7 @@ dependencies = [
 "settings",
 "smol",
 "theme",
+ "util",
 "workspace",
 ]

@@ -6828,7 +7007,7 @@ dependencies = [
 [[package]]
 name = "tree-sitter"
 version = "0.20.9"
-source = "git+https://github.com/tree-sitter/tree-sitter?rev=36b5b6c89e55ad1a502f8b3234bb3e12ec83a5da#36b5b6c89e55ad1a502f8b3234bb3e12ec83a5da"
+source = "git+https://github.com/tree-sitter/tree-sitter?rev=c51896d32dcc11a38e41f36e3deb1a6a9c4f4b14#c51896d32dcc11a38e41f36e3deb1a6a9c4f4b14"
 dependencies = [
 "cc",
 "regex",
@@ -6930,6 +7109,16 @@ dependencies = [
 "tree-sitter",
 ]

+[[package]]
+name = "tree-sitter-lua"
+version = "0.0.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d489873fd1a2fa6d5f04930bfc5c081c96f0c038c1437104518b5b842c69b282"
+dependencies = [
+ "cc",
+ "tree-sitter",
+]
+
 [[package]]
 name = "tree-sitter-markdown"
 version = "0.0.1"
@@ -7006,6 +7195,24 @@ dependencies = [
 "tree-sitter",
 ]

+[[package]]
+name = "tree-sitter-typescript"
+version = "0.20.2"
+source = "git+https://github.com/tree-sitter/tree-sitter-typescript?rev=5d20856f34315b068c41edaee2ac8a100081d259#5d20856f34315b068c41edaee2ac8a100081d259"
+dependencies = [
+ "cc",
+ "tree-sitter",
+]
+
+[[package]]
+name = "tree-sitter-yaml"
+version = "0.0.1"
+source = "git+https://github.com/zed-industries/tree-sitter-yaml?rev=9050a4a4a847ed29e25485b1292a36eab8ae3492#9050a4a4a847ed29e25485b1292a36eab8ae3492"
+dependencies = [
+ "cc",
+ "tree-sitter",
+]
+
 [[package]]
 name = "try-lock"
 version = "0.2.3"
@@ -7182,6 +7389,12 @@ dependencies = [
 "serde",
 ]

+[[package]]
+name = "urlencoding"
+version = "2.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e8db7427f936968176eaa7cdf81b7f98b980b18495ec28f1b5791ac3bfe3eea9"
+
 [[package]]
 name = "usvg"
 version = "0.14.1"
@@ -7237,6 +7450,12 @@ dependencies = [
 "tempdir",
 ]

+[[package]]
+name = "uuid"
+version = "0.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bcc7e3b898aa6f6c08e5295b6c89258d1331e9ac578cc992fb818759951bdc22"
+
 [[package]]
 name = "uuid"
 version = "0.8.2"
@@ -8082,6 +8301,7 @@ dependencies = [
 "smallvec",
 "theme",
 "util",
+ "uuid 1.2.2",
 ]

 [[package]]
@@ -8094,6 +8314,15 @@ dependencies = [
 "winapi-build",
 ]

+[[package]]
+name = "xattr"
+version = "0.2.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6d1526bbe5aaeb5eb06885f4d987bcdfa5e23187055de9b83fe00156a821fabc"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "xml-rs"
 version = "0.8.4"
@@ -8129,13 +8358,14 @@ checksum = "09041cd90cf85f7f8b2df60c646f853b7f535ce68f85244eb6731cf89fa498ec"

 [[package]]
 name = "zed"
-version = "0.68.0"
+version = "0.76.0"
 dependencies = [
 "activity_indicator",
 "anyhow",
 "assets",
 "async-compression",
 "async-recursion 0.3.2",
+ "async-tar",
 "async-trait",
 "auto_update",
 "backtrace",
@@ -8154,6 +8384,7 @@ dependencies = [
 "easy-parallel",
 "editor",
 "env_logger",
+ "feedback",
 "file_finder",
 "fs",
 "fsevent",
@@ -8180,6 +8411,7 @@ dependencies = [
 "project_panel",
 "project_symbols",
 "rand 0.8.5",
+ "recent_projects",
 "regex",
 "rpc",
 "rsa",
@@ -8211,6 +8443,7 @@ dependencies = [
 "tree-sitter-go",
 "tree-sitter-html",
 "tree-sitter-json 0.20.0",
+ "tree-sitter-lua",
 "tree-sitter-markdown",
 "tree-sitter-python",
 "tree-sitter-racket",
@@ -8218,10 +8451,13 @@ dependencies = [
 "tree-sitter-rust",
 "tree-sitter-scheme",
 "tree-sitter-toml",
- "tree-sitter-typescript",
+ "tree-sitter-typescript 0.20.2",
+ "tree-sitter-yaml",
 "unindent",
 "url",
+ "urlencoding",
 "util",
+ "uuid 1.2.2",
 "vim",
 "workspace",
 ]
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -17,6 +17,7 @@ members = [
    "crates/diagnostics",
    "crates/drag_and_drop",
    "crates/editor",
+    "crates/feedback",
    "crates/file_finder",
    "crates/fs",
    "crates/fsevent",
@@ -40,6 +41,7 @@ members = [
    "crates/project",
    "crates/project_panel",
    "crates/project_symbols",
+    "crates/recent_projects",
    "crates/rope",
    "crates/rpc",
    "crates/search",
@@ -67,7 +69,7 @@ serde_json = { version = "1.0", features = ["preserve_order", "raw_value"] }
 rand = { version = "0.8" }

 [patch.crates-io]
-tree-sitter = { git = "https://github.com/tree-sitter/tree-sitter", rev = "36b5b6c89e55ad1a502f8b3234bb3e12ec83a5da" }
+tree-sitter = { git = "https://github.com/tree-sitter/tree-sitter", rev = "c51896d32dcc11a38e41f36e3deb1a6a9c4f4b14" }
 async-task = { git = "https://github.com/zed-industries/async-task", rev = "341b57d6de98cdfd7b418567b8de2022ca993a6e" }

 # TODO - Remove when a version is released with this PR: https://github.com/servo/core-foundation-rs/pull/457
@@ -82,5 +84,3 @@ split-debuginfo = "unpacked"

 [profile.release]
 debug = true
-
-
--- a/1
+++ b/1
@@ -5,6 +5,7 @@ WORKDIR app
 COPY . .

 # Compile collab server
+ARG CARGO_PROFILE_RELEASE_PANIC=abort
 RUN --mount=type=cache,target=./script/node_modules \
    --mount=type=cache,target=/usr/local/cargo/registry \
    --mount=type=cache,target=./target \
--- a/README.md
+++ b/README.md
@@ -23,10 +23,18 @@ Welcome to Zed, a lightning-fast, collaborative code editor that makes your drea
    git clone https://github.com/zed-industries/zed.dev
    ```

-* Set up a local `zed` database and seed it with some initial users:
+* Initialize submodules

    ```
-    script/bootstrap
+    git submodule update --init --recursive
+    ```
+
+* Set up a local `zed` database and seed it with some initial users:
+
+    Create a personal GitHub token to run `script/bootstrap` once successfully. Then delete that token.
+
+    ```
+    GITHUB_TOKEN=<$token> script/bootstrap
    ```

 ### Testing against locally-running servers
@@ -49,30 +57,14 @@ script/zed-with-local-servers --release

 If you trigger `cmd-alt-i`, Zed will copy a JSON representation of the current window contents to the clipboard. You can paste this in a tool like [DJSON](https://chrome.google.com/webstore/detail/djson-json-viewer-formatt/chaeijjekipecdajnijdldjjipaegdjc?hl=en) to navigate the state of on-screen elements in a structured way.

-### Staff Only Features
+### Licensing

-Many features (e.g. the terminal) take significant time and effort before they are polished enough to be released to even Alpha users. But Zed's team workflow relies on fast, daily PRs and there can be large merge conflicts for feature branchs that diverge for a few days. To bridge this gap, there is a `staff_mode` field in the Settings that staff can set to enable these unpolished or incomplete features. Note that this setting isn't leaked via autocompletion, but there is no mechanism to stop users from setting this anyway. As initilization of Zed components is only done once, on startup, setting `staff_mode` may require a restart to take effect. You can set staff only key bindings in the `assets/keymaps/internal.json` file, and add staff only themes in the `styles/src/themes/internal` directory
+We use [`cargo-about`](https://github.com/EmbarkStudios/cargo-about) to automatically comply with open source licenses. If CI is failing, check the following:

-### Experimental Features
+- Is it showing a `no license specified` error for a crate you've created? If so, add `publish = false` under `[package]` in your crate's Cargo.toml.
+- Is the error `failed to satisfy license requirements` for a dependency? If so, first determine what license the project has and whether this system is sufficient to comply with this license's requirements. If you're unsure, ask a lawyer. Once you've verified that this system is acceptable add the license's SPDX identifier to the `accepted` array in `script/licenses/zed-licenses.toml`.
+- Is `cargo-about` unable to find the license for a dependency? If so, add a clarification field at the end of `script/licenses/zed-licenses.toml`, as specified in the [cargo-about book](https://embarkstudios.github.io/cargo-about/cli/generate/config.html#crate-configuration).

-A user facing feature flag can be added to Zed by:
-
-* Adding a setting to the crates/settings/src/settings.rs FeatureFlags struct. Use a boolean for a simple on/off, or use a struct to experiment with different configuration options. 
-* If the feature needs keybindings, add a file to the `assets/keymaps/experiments/` folder, then update the `FeatureFlags::keymap_files()` method to check for your feature's flag and add it's keybindings's path to the method's list. 
-* If you want to add an experimental theme, add it to the `styles/src/themes/experiments` folder
-
-The Settings global should be initialized with the user's feature flags by the time the feature's `init(cx)` equivalent is called.
-
-To promote an experimental feature to a full feature: 
-
-* If this is an experimental theme, move the theme file from the `styles/src/themes/experiments` folder to the `styles/src/themes/` folder
-* Take the features settings (if any) and add them under a new variable in the Settings struct. Don't forget to add a `merge()` call in `set_user_settings()`!
-* Take the feature's keybindings and add them to the default.json (or equivalent) file
-* Remove the file from the `FeatureFlags::keymap_files()` method
-* Remove the conditional in the feature's `init(cx)` equivalent.
-
-
-That's it 😸

 ### Wasm Plugins

@@ -83,56 +75,3 @@ rustup target add wasm32-wasi
 ```

 Plugins can be found in the `plugins` folder in the root. For more information about how plugins work, check the [Plugin Guide](./crates/plugin_runtime/README.md) in `crates/plugin_runtime/README.md`.
-
-## Roadmap
-
-We will organize our efforts around the following major milestones. We'll create tracking issues for each of these milestones to detail the individual tasks that comprise them.
-
-### Minimal text editor
-
-[Tracking issue](https://github.com/zed-industries/zed/issues/2)
-
-Ship a minimal text editor to investors and other insiders. It should be extremely fast and stable, but all it can do is open, edit, and save text files, making it potentially useful for basic editing but not for real coding.
-
-Establish basic infrastructure for building the app bundle and uploading an artifact. Once this is released, we should regularly distribute updates as features land.
-
-### Collaborative code editor for internal use
-
-[Tracking issue](https://github.com/zed-industries/zed/issues/6)
-
-Turn the minimal text editor into a collaborative _code_ editor. This will include the minimal features that the Zed team needs to collaborate in Zed to build Zed without net loss in developer productivity. This includes productivity-critical features such as:
-
- Syntax highlighting and syntax-aware editing and navigation
- The ability to see and edit non-local working copies of a repository
- Language server support for Rust code navigation, refactoring, diagnostics, etc.
- Project browsing and project-wide search and replace
-
-We want to tackle collaboration fairly early so that the rest of the design of the product can flow around that assumption. We could probably produce a single-player code editor more quickly, but at the risk of having collaboration feel more "bolted on" when we eventually add it.
-
-### Private alpha for Rust teams on macOS
-
-The "minimal" milestones were about getting Zed to a point where the Zed team could use Zed productively to build Zed. What features are required for someone outside the company to use Zed to productively work on another project that is also written in Rust?
-
-This includes infrastructure like auto-updates, error reporting, and metrics collection. It also includes some amount of polish to make the tool more discoverable for someone that didn't write it, such as a UI for updating settings and key bindings. We may also need to enhance the server to support user authentication and related concerns.
-
-The initial target audience is like us. A small team working in Rust that's potentially interested in collaborating. As the alpha proceeds, we can work with teams of different sizes.
-
-### Private beta for Rust teams on macOS
-
-Once we're getting sufficiently positive feedback from our initial alpha users, we widen the audience by letting people share invites. Now may be a good time to get Zed running on the web, so that it's extremely easy for a Zed user to share a link and be collaborating in seconds. Once someone is using Zed on the Web, we'll let them register for the private beta and download the native binary if they're on macOS.
-
-### Expand to other languages
-
-Depending on how the Rust beta is going, focus hard on dominating another niche language such as Elixr or getting a foothold within a niche of a larger language, such as React/Typescript. Alternatively, go wide at this point and add decent support several widely-used languages such as Python, Ruby, Typescript, etc. This would entail taking 1-2 weeks per language and making sure we ship a solid experience based on a publicly-available language server. Each language has slightly different development practices, so we need to make sure Zed's UX meshes well with those practices.
-
-### Future directions
-
-Each of these sections could probably broken into multiple milestones, but this part of the roadmap is too far in the future to go into that level of detail at this point.
-
-#### Expand to other platforms
-
-Support Linux and Windows. We'll probably want to hire at least one person that prefers to work on each respective platform and have them spearhead the effort to port Zed to that platform. Once they've done so, they can join the general development effort while ensuring the user experience stays good on that platform.
-
-#### Expand on collaboration
-
-To start with, we'll focus on synchronous collaboration because that's where we're most differentiated, but there's no reason we have to limit ourselves to that. How can our tool facilitate collaboration generally, whether it's sync or async? What would it take for a team to go 100% Zed and collaborate fully within the tool? If we haven't added it already, basic Git support would be nice.
--- a/assets/icons/ellipsis_14.svg
+++ b/assets/icons/ellipsis_14.svg
@@ -0,0 +1,3 @@
+<svg width="14" height="4" viewBox="0 0 14 4" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path fill-rule="evenodd" clip-rule="evenodd" d="M3.125 2C3.125 2.62132 2.62132 3.125 2 3.125C1.37868 3.125 0.875 2.62132 0.875 2C0.875 1.37868 1.37868 0.875 2 0.875C2.62132 0.875 3.125 1.37868 3.125 2ZM8.125 2C8.125 2.62132 7.62132 3.125 7 3.125C6.37868 3.125 5.875 2.62132 5.875 2C5.875 1.37868 6.37868 0.875 7 0.875C7.62132 0.875 8.125 1.37868 8.125 2ZM12 3.125C12.6213 3.125 13.125 2.62132 13.125 2C13.125 1.37868 12.6213 0.875 12 0.875C11.3787 0.875 10.875 1.37868 10.875 2C10.875 2.62132 11.3787 3.125 12 3.125Z" fill="#ABB2BF"/>
+</svg>
--- a/assets/icons/leave_12.svg
+++ b/assets/icons/leave_12.svg
@@ -0,0 +1,3 @@
+<svg width="12" height="12" viewBox="0 0 12 12" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path fill-rule="evenodd" clip-rule="evenodd" d="M0 1C0 0.585786 0.335786 0.25 0.75 0.25H7.25C7.66421 0.25 8 0.585786 8 1C8 1.41421 7.66421 1.75 7.25 1.75H1.5V10.25H7.25C7.66421 10.25 8 10.5858 8 11C8 11.4142 7.66421 11.75 7.25 11.75H0.75C0.335786 11.75 0 11.4142 0 11V1ZM8.78148 2.91435C9.10493 2.65559 9.57689 2.70803 9.83565 3.03148L11.8357 5.53148C12.0548 5.80539 12.0548 6.19461 11.8357 6.46852L9.83565 8.96852C9.57689 9.29197 9.10493 9.34441 8.78148 9.08565C8.45803 8.82689 8.40559 8.35493 8.66435 8.03148L9.68953 6.75H3.75C3.33579 6.75 3 6.41421 3 6C3 5.58579 3.33579 5.25 3.75 5.25H9.68953L8.66435 3.96852C8.40559 3.64507 8.45803 3.17311 8.78148 2.91435Z" fill="#ABB2BF"/>
+</svg>
--- a/assets/keymaps/default.json
+++ b/assets/keymaps/default.json
@@ -20,8 +20,10 @@
            "alt-cmd-left": "pane::ActivatePrevItem",
            "alt-cmd-right": "pane::ActivateNextItem",
            "cmd-w": "pane::CloseActiveItem",
-            "cmd-shift-w": "workspace::CloseWindow",
            "alt-cmd-t": "pane::CloseInactiveItems",
+            "cmd-k u": "pane::CloseCleanItems",
+            "cmd-k cmd-w": "pane::CloseAllItems",
+            "cmd-shift-w": "workspace::CloseWindow",
            "cmd-s": "workspace::Save",
            "cmd-shift-s": "workspace::SaveAs",
            "cmd-=": "zed::IncreaseBufferFontSize",
@@ -36,6 +38,7 @@
            "cmd-n": "workspace::NewFile",
            "cmd-shift-n": "workspace::NewWindow",
            "cmd-o": "workspace::Open",
+            "alt-cmd-o": "projects::OpenRecent",
            "ctrl-`": "workspace::NewTerminal"
        }
    },
@@ -66,9 +69,11 @@
            "up": "editor::MoveUp",
            "pageup": "editor::PageUp",
            "shift-pageup": "editor::MovePageUp",
+            "home": "editor::MoveToBeginningOfLine",
            "down": "editor::MoveDown",
            "pagedown": "editor::PageDown",
            "shift-pagedown": "editor::MovePageDown",
+            "end": "editor::MoveToEndOfLine",
            "left": "editor::MoveLeft",
            "right": "editor::MoveRight",
            "ctrl-p": "editor::MoveUp",
@@ -109,6 +114,12 @@
                    "stop_at_soft_wraps": true
                }
            ],
+            "shift-home": [
+                "editor::SelectToBeginningOfLine",
+                {
+                    "stop_at_soft_wraps": true
+                }
+            ],
            "ctrl-shift-a": [
                "editor::SelectToBeginningOfLine",
                {
@@ -121,6 +132,12 @@
                    "stop_at_soft_wraps": true
                }
            ],
+            "shift-end": [
+                "editor::SelectToEndOfLine",
+                {
+                    "stop_at_soft_wraps": true
+                }
+            ],
            "ctrl-shift-e": [
                "editor::SelectToEndOfLine",
                {
@@ -147,6 +164,7 @@
        "bindings": {
            "enter": "editor::Newline",
            "cmd-enter": "editor::NewlineBelow",
+            "alt-z": "editor::ToggleSoftWrap",
            "cmd-f": [
                "buffer_search::Deploy",
                {
@@ -169,10 +187,10 @@
        }
    },
    {
-        "context": "BufferSearchBar",
+        "context": "BufferSearchBar > Editor",
        "bindings": {
            "escape": "buffer_search::Dismiss",
-            "cmd-f": "buffer_search::FocusEditor",
+            "tab": "buffer_search::FocusEditor",
            "enter": "search::SelectNextMatch",
            "shift-enter": "search::SelectPrevMatch"
        }
@@ -210,7 +228,13 @@
                    "replace_newest": true
                }
            ],
-            "cmd-/": "editor::ToggleComments",
+            "cmd-k cmd-i": "editor::Hover",
+            "cmd-/": [
+                "editor::ToggleComments",
+                {
+                    "advance_downwards": false
+                }
+            ],
            "alt-up": "editor::SelectLargerSyntaxNode",
            "alt-down": "editor::SelectSmallerSyntaxNode",
            "cmd-u": "editor::UndoSelection",
@@ -395,7 +419,7 @@
    {
        "bindings": {
            "ctrl-alt-cmd-f": "workspace::FollowNextCollaborator",
-            "cmd-shift-c": "collab::ToggleCollaborationMenu",
+            "cmd-shift-c": "collab::ToggleContactsMenu",
            "cmd-alt-i": "zed::DebugElements"
        }
    },
@@ -416,8 +440,7 @@
    {
        "context": "Workspace",
        "bindings": {
-            "shift-escape": "dock::FocusDock",
-            "cmd-shift-b": "workspace::ToggleRightSidebar"
+            "shift-escape": "dock::FocusDock"
        }
    },
    {
@@ -428,15 +451,16 @@
        }
    },
    {
-        "context": "Dock",
+        "context": "Pane",
        "bindings": {
-            "shift-escape": "dock::HideDock"
+            "cmd-escape": "dock::AddTabToDock"
        }
    },
    {
-        "context": "Pane",
+        "context": "Pane && docked",
        "bindings": {
-            "cmd-escape": "dock::MoveActiveItemToDock"
+            "shift-escape": "dock::HideDock",
+            "cmd-escape": "dock::RemoveTabFromDock"
        }
    },
    {
--- a/assets/keymaps/internal.json
+++ b/assets/keymaps/internal.json
@@ -1 +0,0 @@
-[]
--- a/assets/keymaps/vim.json
+++ b/assets/keymaps/vim.json
@@ -1,6 +1,6 @@
 [
    {
-        "context": "Editor && VimControl",
+        "context": "Editor && VimControl && !VimWaiting",
        "bindings": {
            "g": [
                "vim::PushOperator",
@@ -27,6 +27,7 @@
            "h": "vim::Left",
            "backspace": "vim::Backspace",
            "j": "vim::Down",
+            "enter": "vim::NextLineStart",
            "k": "vim::Up",
            "l": "vim::Right",
            "$": "vim::EndOfLine",
@@ -53,6 +54,42 @@
                }
            ],
            "%": "vim::Matching",
+            "ctrl-y": [
+                "vim::Scroll",
+                "LineUp"
+            ],
+            "f": [
+                "vim::PushOperator",
+                {
+                    "FindForward": {
+                        "before": false
+                    }
+                }
+            ],
+            "t": [
+                "vim::PushOperator",
+                {
+                    "FindForward": {
+                        "before": true
+                    }
+                }
+            ],
+            "shift-f": [
+                "vim::PushOperator",
+                {
+                    "FindBackward": {
+                        "after": false
+                    }
+                }
+            ],
+            "shift-t": [
+                "vim::PushOperator",
+                {
+                    "FindBackward": {
+                        "after": true
+                    }
+                }
+            ],
            "escape": "editor::Cancel",
            "0": "vim::StartOfLine", // When no number operator present, use start of line motion
            "1": [
@@ -94,7 +131,7 @@
        }
    },
    {
-        "context": "Editor && vim_mode == normal && vim_operator == none",
+        "context": "Editor && vim_mode == normal && vim_operator == none && !VimWaiting",
        "bindings": {
            "c": [
                "vim::PushOperator",
@@ -174,9 +211,9 @@
                "vim::Scroll",
                "LineDown"
            ],
-            "ctrl-y": [
-                "vim::Scroll",
-                "LineUp"
+            "r": [
+                "vim::PushOperator",
+                "Replace"
            ]
        }
    },
@@ -197,7 +234,8 @@
            "escape": [
                "vim::SwitchMode",
                "Normal"
-            ]
+            ],
+            "d": "editor::GoToDefinition"
        }
    },
    {
@@ -255,14 +293,18 @@
        }
    },
    {
-        "context": "Editor && vim_mode == visual",
+        "context": "Editor && vim_mode == visual && !VimWaiting",
        "bindings": {
            "u": "editor::Undo",
            "c": "vim::VisualChange",
            "d": "vim::VisualDelete",
            "x": "vim::VisualDelete",
            "y": "vim::VisualYank",
-            "p": "vim::VisualPaste"
+            "p": "vim::VisualPaste",
+            "r": [
+                "vim::PushOperator",
+                "Replace"
+            ]
        }
    },
    {
@@ -271,5 +313,13 @@
            "escape": "vim::NormalBefore",
            "ctrl-c": "vim::NormalBefore"
        }
+    },
+    {
+        "context": "Editor && VimWaiting",
+        "bindings": {
+            "tab": "vim::Tab",
+            "enter": "vim::Enter",
+            "escape": "editor::Cancel"
+        }
    }
 ]
--- a/assets/settings/default.json
+++ b/assets/settings/default.json
@@ -13,11 +13,15 @@
    // Whether to show the informational hover box when moving the mouse
    // over symbols in the editor.
    "hover_popover_enabled": true,
+    // Whether to confirm before quitting Zed.
+    "confirm_quit": false,
    // Whether the cursor blinks in the editor.
    "cursor_blink": true,
    // Whether to pop the completions menu while typing in an editor without
    // explicitly requesting it.
    "show_completions_on_input": true,
+    // Whether the screen sharing icon is showed in the os status bar.
+    "show_call_status_icon": true,
    // Whether new projects should start out 'online'. Online projects
    // appear in the contacts panel under your name, so that your contacts
    // can see which projects you are working on. Regardless of this
@@ -47,6 +51,12 @@
    // 3. Position the dock full screen over the entire workspace"
    //     "default_dock_anchor": "expanded"
    "default_dock_anchor": "right",
+    // Whether or not to remove any trailing whitespace from lines of a buffer
+    // before saving it.
+    "remove_trailing_whitespace_on_save": true,
+    // Whether or not to ensure there's a single newline at the end of a buffer
+    // when saving it.
+    "ensure_final_newline_on_save": true,
    // Whether or not to perform a buffer format before saving
    "format_on_save": "on",
    // How to perform a buffer format. This setting can take two values:
@@ -79,6 +89,15 @@
    "hard_tabs": false,
    // How many columns a tab should occupy.
    "tab_size": 4,
+    // Control what info is collected by Zed.
+    "telemetry": {
+        // Send debug info like crash reports.
+        "diagnostics": true,
+        // Send anonymized usage data like what languages you're using Zed with.
+        "metrics": true
+    },
+    // Automatically update Zed
+    "auto_update": true,
    // Git gutter behavior configuration.
    "git": {
        // Control whether the git gutter is shown. May take 2 values:
@@ -210,6 +229,9 @@
        },
        "TSX": {
            "tab_size": 2
+        },
+        "YAML": {
+            "tab_size": 2
        }
    },
    // LSP Specific settings.
@@ -221,7 +243,7 @@
        // rust-analyzer
        // typescript-language-server
        // vscode-json-languageserver
-        // "rust_analyzer": {
+        // "rust-analyzer": {
        //     //These initialization options are merged into Zed's defaults
        //     "initialization_options": {
        //         "checkOnSave": {
--- a/crates/activity_indicator/Cargo.toml
+++ b/crates/activity_indicator/Cargo.toml
@@ -2,6 +2,7 @@
 name = "activity_indicator"
 version = "0.1.0"
 edition = "2021"
+publish = false

 [lib]
 path = "src/activity_indicator.rs"
--- a/crates/activity_indicator/src/activity_indicator.rs
+++ b/crates/activity_indicator/src/activity_indicator.rs
@@ -33,6 +33,19 @@ struct LspStatus {
    status: LanguageServerBinaryStatus,
 }

+struct PendingWork<'a> {
+    language_server_name: &'a str,
+    progress_token: &'a str,
+    progress: &'a LanguageServerProgress,
+}
+
+#[derive(Default)]
+struct Content {
+    icon: Option<&'static str>,
+    message: String,
+    action: Option<Box<dyn Action>>,
+}
+
 pub fn init(cx: &mut MutableAppContext) {
    cx.add_action(ActivityIndicator::show_error_message);
    cx.add_action(ActivityIndicator::dismiss_error_message);
@@ -69,6 +82,8 @@ impl ActivityIndicator {
            if let Some(auto_updater) = auto_updater.as_ref() {
                cx.observe(auto_updater, |_, _, cx| cx.notify()).detach();
            }
+            cx.observe_active_labeled_tasks(|_, cx| cx.notify())
+                .detach();

            Self {
                statuses: Default::default(),
@@ -130,7 +145,7 @@ impl ActivityIndicator {
    fn pending_language_server_work<'a>(
        &self,
        cx: &'a AppContext,
-    ) -> impl Iterator<Item = (&'a str, &'a str, &'a LanguageServerProgress)> {
+    ) -> impl Iterator<Item = PendingWork<'a>> {
        self.project
            .read(cx)
            .language_server_statuses()
@@ -142,23 +157,29 @@ impl ActivityIndicator {
                    let mut pending_work = status
                        .pending_work
                        .iter()
-                        .map(|(token, progress)| (status.name.as_str(), token.as_str(), progress))
+                        .map(|(token, progress)| PendingWork {
+                            language_server_name: status.name.as_str(),
+                            progress_token: token.as_str(),
+                            progress,
+                        })
                        .collect::<SmallVec<[_; 4]>>();
-                    pending_work.sort_by_key(|(_, _, progress)| Reverse(progress.last_update_at));
+                    pending_work.sort_by_key(|work| Reverse(work.progress.last_update_at));
                    Some(pending_work)
                }
            })
            .flatten()
    }

-    fn content_to_render(
-        &mut self,
-        cx: &mut RenderContext<Self>,
-    ) -> (Option<&'static str>, String, Option<Box<dyn Action>>) {
+    fn content_to_render(&mut self, cx: &mut RenderContext<Self>) -> Content {
        // Show any language server has pending activity.
        let mut pending_work = self.pending_language_server_work(cx);
-        if let Some((lang_server_name, progress_token, progress)) = pending_work.next() {
-            let mut message = lang_server_name.to_string();
+        if let Some(PendingWork {
+            language_server_name,
+            progress_token,
+            progress,
+        }) = pending_work.next()
+        {
+            let mut message = language_server_name.to_string();

            message.push_str(": ");
            if let Some(progress_message) = progress.message.as_ref() {
@@ -176,7 +197,11 @@ impl ActivityIndicator {
                write!(&mut message, " + {} more", additional_work_count).unwrap();
            }

-            return (None, message, None);
+            return Content {
+                icon: None,
+                message,
+                action: None,
+            };
        }

        // Show any language server installation info.
@@ -199,19 +224,19 @@ impl ActivityIndicator {
        }

        if !downloading.is_empty() {
-            return (
-                Some(DOWNLOAD_ICON),
-                format!(
+            return Content {
+                icon: Some(DOWNLOAD_ICON),
+                message: format!(
                    "Downloading {} language server{}...",
                    downloading.join(", "),
                    if downloading.len() > 1 { "s" } else { "" }
                ),
-                None,
-            );
+                action: None,
+            };
        } else if !checking_for_update.is_empty() {
-            return (
-                Some(DOWNLOAD_ICON),
-                format!(
+            return Content {
+                icon: Some(DOWNLOAD_ICON),
+                message: format!(
                    "Checking for updates to {} language server{}...",
                    checking_for_update.join(", "),
                    if checking_for_update.len() > 1 {
@@ -220,49 +245,61 @@ impl ActivityIndicator {
                        ""
                    }
                ),
-                None,
-            );
+                action: None,
+            };
        } else if !failed.is_empty() {
-            return (
-                Some(WARNING_ICON),
-                format!(
+            return Content {
+                icon: Some(WARNING_ICON),
+                message: format!(
                    "Failed to download {} language server{}. Click to show error.",
                    failed.join(", "),
                    if failed.len() > 1 { "s" } else { "" }
                ),
-                Some(Box::new(ShowErrorMessage)),
-            );
+                action: Some(Box::new(ShowErrorMessage)),
+            };
        }

        // Show any application auto-update info.
        if let Some(updater) = &self.auto_updater {
-            match &updater.read(cx).status() {
-                AutoUpdateStatus::Checking => (
-                    Some(DOWNLOAD_ICON),
-                    "Checking for Zed updates…".to_string(),
-                    None,
-                ),
-                AutoUpdateStatus::Downloading => (
-                    Some(DOWNLOAD_ICON),
-                    "Downloading Zed update…".to_string(),
-                    None,
-                ),
-                AutoUpdateStatus::Installing => (
-                    Some(DOWNLOAD_ICON),
-                    "Installing Zed update…".to_string(),
-                    None,
-                ),
-                AutoUpdateStatus::Updated => (None, "Restart to update Zed".to_string(), None),
-                AutoUpdateStatus::Errored => (
-                    Some(WARNING_ICON),
-                    "Auto update failed".to_string(),
-                    Some(Box::new(DismissErrorMessage)),
-                ),
+            return match &updater.read(cx).status() {
+                AutoUpdateStatus::Checking => Content {
+                    icon: Some(DOWNLOAD_ICON),
+                    message: "Checking for Zed updates…".to_string(),
+                    action: None,
+                },
+                AutoUpdateStatus::Downloading => Content {
+                    icon: Some(DOWNLOAD_ICON),
+                    message: "Downloading Zed update…".to_string(),
+                    action: None,
+                },
+                AutoUpdateStatus::Installing => Content {
+                    icon: Some(DOWNLOAD_ICON),
+                    message: "Installing Zed update…".to_string(),
+                    action: None,
+                },
+                AutoUpdateStatus::Updated => Content {
+                    icon: None,
+                    message: "Click to restart and update Zed".to_string(),
+                    action: Some(Box::new(workspace::Restart)),
+                },
+                AutoUpdateStatus::Errored => Content {
+                    icon: Some(WARNING_ICON),
+                    message: "Auto update failed".to_string(),
+                    action: Some(Box::new(DismissErrorMessage)),
+                },
                AutoUpdateStatus::Idle => Default::default(),
-            }
-        } else {
-            Default::default()
+            };
        }
+
+        if let Some(most_recent_active_task) = cx.active_labeled_tasks().last() {
+            return Content {
+                icon: None,
+                message: most_recent_active_task.to_string(),
+                action: None,
+            };
+        }
+
+        Default::default()
    }
 }

@@ -276,7 +313,11 @@ impl View for ActivityIndicator {
    }

    fn render(&mut self, cx: &mut RenderContext<Self>) -> ElementBox {
-        let (icon, message, action) = self.content_to_render(cx);
+        let Content {
+            icon,
+            message,
+            action,
+        } = self.content_to_render(cx);

        let mut element = MouseEventHandler::<Self>::new(0, cx, |state, cx| {
            let theme = &cx
--- a/crates/assets/Cargo.toml
+++ b/crates/assets/Cargo.toml
@@ -2,6 +2,7 @@
 name = "assets"
 version = "0.1.0"
 edition = "2021"
+publish = false

 [lib]
 path = "src/assets.rs"
--- a/crates/auto_update/Cargo.toml
+++ b/crates/auto_update/Cargo.toml
@@ -2,6 +2,7 @@
 name = "auto_update"
 version = "0.1.0"
 edition = "2021"
+publish = false

 [lib]
 path = "src/auto_update.rs"
--- a/crates/auto_update/src/auto_update.rs
+++ b/crates/auto_update/src/auto_update.rs
@@ -2,15 +2,16 @@ mod update_notification;

 use anyhow::{anyhow, Context, Result};
 use client::{http::HttpClient, ZED_SECRET_CLIENT_TOKEN};
+use client::{ZED_APP_PATH, ZED_APP_VERSION};
 use db::kvp::KEY_VALUE_STORE;
 use gpui::{
    actions, platform::AppVersion, AppContext, AsyncAppContext, Entity, ModelContext, ModelHandle,
    MutableAppContext, Task, WeakViewHandle,
 };
-use lazy_static::lazy_static;
 use serde::Deserialize;
+use settings::Settings;
 use smol::{fs::File, io::AsyncReadExt, process::Command};
-use std::{env, ffi::OsString, path::PathBuf, sync::Arc, time::Duration};
+use std::{ffi::OsString, sync::Arc, time::Duration};
 use update_notification::UpdateNotification;
 use util::channel::ReleaseChannel;
 use workspace::Workspace;
@@ -18,13 +19,6 @@ use workspace::Workspace;
 const SHOULD_SHOW_UPDATE_NOTIFICATION_KEY: &str = "auto-updater-should-show-updated-notification";
 const POLL_INTERVAL: Duration = Duration::from_secs(60 * 60);

-lazy_static! {
-    pub static ref ZED_APP_VERSION: Option<AppVersion> = env::var("ZED_APP_VERSION")
-        .ok()
-        .and_then(|v| v.parse().ok());
-    pub static ref ZED_APP_PATH: Option<PathBuf> = env::var("ZED_APP_PATH").ok().map(PathBuf::from);
-}
-
 actions!(auto_update, [Check, DismissErrorMessage, ViewReleaseNotes]);

 #[derive(Clone, Copy, PartialEq, Eq)]
@@ -60,7 +54,23 @@ pub fn init(http_client: Arc<dyn HttpClient>, server_url: String, cx: &mut Mutab
        let server_url = server_url;
        let auto_updater = cx.add_model(|cx| {
            let updater = AutoUpdater::new(version, http_client, server_url.clone());
-            updater.start_polling(cx).detach();
+
+            let mut update_subscription = cx
+                .global::<Settings>()
+                .auto_update
+                .then(|| updater.start_polling(cx));
+
+            cx.observe_global::<Settings, _>(move |updater, cx| {
+                if cx.global::<Settings>().auto_update {
+                    if update_subscription.is_none() {
+                        *(&mut update_subscription) = Some(updater.start_polling(cx))
+                    }
+                } else {
+                    (&mut update_subscription).take();
+                }
+            })
+            .detach();
+
            updater
        });
        cx.set_global(Some(auto_updater));
--- a/crates/auto_update/src/update_notification.rs
+++ b/crates/auto_update/src/update_notification.rs
@@ -78,7 +78,7 @@ impl View for UpdateNotification {
                )
                .with_child({
                    let style = theme.action_message.style_for(state, false);
-                    Text::new("View the release notes".to_string(), style.text.clone())
+                    Text::new("View the release notes", style.text.clone())
                        .contained()
                        .with_style(style.container)
                        .boxed()
--- a/crates/breadcrumbs/Cargo.toml
+++ b/crates/breadcrumbs/Cargo.toml
@@ -2,6 +2,7 @@
 name = "breadcrumbs"
 version = "0.1.0"
 edition = "2021"
+publish = false

 [lib]
 path = "src/breadcrumbs.rs"
--- a/crates/breadcrumbs/src/breadcrumbs.rs
+++ b/crates/breadcrumbs/src/breadcrumbs.rs
@@ -47,7 +47,7 @@ impl View for Breadcrumbs {
        {
            Flex::row()
                .with_children(Itertools::intersperse_with(breadcrumbs.into_iter(), || {
-                    Label::new(" 〉 ".to_string(), theme.breadcrumbs.text.clone()).boxed()
+                    Label::new(" 〉 ", theme.breadcrumbs.text.clone()).boxed()
                }))
                .contained()
                .with_style(theme.breadcrumbs.container)
--- a/crates/call/Cargo.toml
+++ b/crates/call/Cargo.toml
@@ -2,6 +2,7 @@
 name = "call"
 version = "0.1.0"
 edition = "2021"
+publish = false

 [lib]
 path = "src/call.rs"
@@ -21,9 +22,13 @@ test-support = [
 client = { path = "../client" }
 collections = { path = "../collections" }
 gpui = { path = "../gpui" }
+log = "0.4"
 live_kit_client = { path = "../live_kit_client" }
+fs = { path = "../fs" }
+language = { path = "../language" }
 media = { path = "../media" }
 project = { path = "../project" }
+settings = { path = "../settings" }
 util = { path = "../util" }

 anyhow = "1.0.38"
@@ -33,6 +38,8 @@ postage = { version = "0.4.1", features = ["futures-traits"] }

 [dev-dependencies]
 client = { path = "../client", features = ["test-support"] }
+fs = { path = "../fs", features = ["test-support"] }
+language = { path = "../language", features = ["test-support"] }
 collections = { path = "../collections", features = ["test-support"] }
 gpui = { path = "../gpui", features = ["test-support"] }
 live_kit_client = { path = "../live_kit_client", features = ["test-support"] }
--- a/crates/call/src/call.rs
+++ b/crates/call/src/call.rs
@@ -1,18 +1,22 @@
 pub mod participant;
 pub mod room;

+use std::sync::Arc;
+
 use anyhow::{anyhow, Result};
 use client::{proto, Client, TypedEnvelope, User, UserStore};
 use collections::HashSet;
+use futures::{future::Shared, FutureExt};
+use postage::watch;
+
 use gpui::{
    AppContext, AsyncAppContext, Entity, ModelContext, ModelHandle, MutableAppContext,
    Subscription, Task, WeakModelHandle,
 };
-pub use participant::ParticipantLocation;
-use postage::watch;
 use project::Project;
+
+pub use participant::ParticipantLocation;
 pub use room::Room;
-use std::sync::Arc;

 pub fn init(client: Arc<Client>, user_store: ModelHandle<UserStore>, cx: &mut MutableAppContext) {
    let active_call = cx.add_model(|cx| ActiveCall::new(client, user_store, cx));
@@ -27,8 +31,10 @@ pub struct IncomingCall {
    pub initial_project: Option<proto::ParticipantProject>,
 }

+/// Singleton global maintaining the user's participation in a room across workspaces.
 pub struct ActiveCall {
    room: Option<(ModelHandle<Room>, Vec<Subscription>)>,
+    pending_room_creation: Option<Shared<Task<Result<ModelHandle<Room>, Arc<anyhow::Error>>>>>,
    location: Option<WeakModelHandle<Project>>,
    pending_invites: HashSet<u64>,
    incoming_call: (
@@ -52,6 +58,7 @@ impl ActiveCall {
    ) -> Self {
        Self {
            room: None,
+            pending_room_creation: None,
            location: None,
            pending_invites: Default::default(),
            incoming_call: watch::channel(),
@@ -120,45 +127,74 @@ impl ActiveCall {
        initial_project: Option<ModelHandle<Project>>,
        cx: &mut ModelContext<Self>,
    ) -> Task<Result<()>> {
-        let client = self.client.clone();
-        let user_store = self.user_store.clone();
        if !self.pending_invites.insert(called_user_id) {
            return Task::ready(Err(anyhow!("user was already invited")));
        }
-
        cx.notify();
-        cx.spawn(|this, mut cx| async move {
-            let invite = async {
-                if let Some(room) = this.read_with(&cx, |this, _| this.room().cloned()) {
-                    let initial_project_id = if let Some(initial_project) = initial_project {
-                        Some(
-                            room.update(&mut cx, |room, cx| {
-                                room.share_project(initial_project, cx)
-                            })
+
+        let room = if let Some(room) = self.room().cloned() {
+            Some(Task::ready(Ok(room)).shared())
+        } else {
+            self.pending_room_creation.clone()
+        };
+
+        let invite = if let Some(room) = room {
+            cx.spawn_weak(|_, mut cx| async move {
+                let room = room.await.map_err(|err| anyhow!("{:?}", err))?;
+
+                let initial_project_id = if let Some(initial_project) = initial_project {
+                    Some(
+                        room.update(&mut cx, |room, cx| room.share_project(initial_project, cx))
                            .await?,
-                        )
-                    } else {
-                        None
-                    };
-
-                    room.update(&mut cx, |room, cx| {
-                        room.call(called_user_id, initial_project_id, cx)
-                    })
-                    .await?;
+                    )
                } else {
-                    let room = cx
-                        .update(|cx| {
-                            Room::create(called_user_id, initial_project, client, user_store, cx)
-                        })
-                        .await?;
-
-                    this.update(&mut cx, |this, cx| this.set_room(Some(room), cx))
-                        .await?;
+                    None
                };

-                Ok(())
-            };
+                room.update(&mut cx, |room, cx| {
+                    room.call(called_user_id, initial_project_id, cx)
+                })
+                .await?;

+                anyhow::Ok(())
+            })
+        } else {
+            let client = self.client.clone();
+            let user_store = self.user_store.clone();
+            let room = cx
+                .spawn(|this, mut cx| async move {
+                    let create_room = async {
+                        let room = cx
+                            .update(|cx| {
+                                Room::create(
+                                    called_user_id,
+                                    initial_project,
+                                    client,
+                                    user_store,
+                                    cx,
+                                )
+                            })
+                            .await?;
+
+                        this.update(&mut cx, |this, cx| this.set_room(Some(room.clone()), cx))
+                            .await?;
+
+                        anyhow::Ok(room)
+                    };
+
+                    let room = create_room.await;
+                    this.update(&mut cx, |this, _| this.pending_room_creation = None);
+                    room.map_err(Arc::new)
+                })
+                .shared();
+            self.pending_room_creation = Some(room.clone());
+            cx.foreground().spawn(async move {
+                room.await.map_err(|err| anyhow!("{:?}", err))?;
+                anyhow::Ok(())
+            })
+        };
+
+        cx.spawn(|this, mut cx| async move {
            let result = invite.await;
            this.update(&mut cx, |this, cx| {
                this.pending_invites.remove(&called_user_id);
@@ -248,6 +284,18 @@ impl ActiveCall {
        }
    }

+    pub fn unshare_project(
+        &mut self,
+        project: ModelHandle<Project>,
+        cx: &mut ModelContext<Self>,
+    ) -> Result<()> {
+        if let Some((room, _)) = self.room.as_ref() {
+            room.update(cx, |room, cx| room.unshare_project(project, cx))
+        } else {
+            Err(anyhow!("no active call"))
+        }
+    }
+
    pub fn set_location(
        &mut self,
        project: Option<&ModelHandle<Project>>,
--- a/crates/call/src/participant.rs
+++ b/crates/call/src/participant.rs
@@ -39,6 +39,7 @@ pub struct LocalParticipant {
 #[derive(Clone, Debug)]
 pub struct RemoteParticipant {
    pub user: Arc<User>,
+    pub peer_id: proto::PeerId,
    pub projects: Vec<proto::ParticipantProject>,
    pub location: ParticipantLocation,
    pub tracks: HashMap<live_kit_client::Sid, Arc<RemoteVideoTrack>>,
--- a/crates/call/src/room.rs
+++ b/crates/call/src/room.rs
@@ -3,27 +3,32 @@ use crate::{
    IncomingCall,
 };
 use anyhow::{anyhow, Result};
-use client::{proto, Client, PeerId, TypedEnvelope, User, UserStore};
-use collections::{BTreeMap, HashSet};
+use client::{
+    proto::{self, PeerId},
+    Client, TypedEnvelope, User, UserStore,
+};
+use collections::{BTreeMap, HashMap, HashSet};
+use fs::Fs;
 use futures::{FutureExt, StreamExt};
 use gpui::{
    AsyncAppContext, Entity, ModelContext, ModelHandle, MutableAppContext, Task, WeakModelHandle,
 };
+use language::LanguageRegistry;
 use live_kit_client::{LocalTrackPublication, LocalVideoTrack, RemoteVideoTrackUpdate};
 use postage::stream::Stream;
 use project::Project;
 use std::{mem, sync::Arc, time::Duration};
-use util::{post_inc, ResultExt};
+use util::{post_inc, ResultExt, TryFutureExt};

-pub const RECONNECT_TIMEOUT: Duration = client::RECEIVE_TIMEOUT;
+pub const RECONNECT_TIMEOUT: Duration = Duration::from_secs(30);

 #[derive(Clone, Debug, PartialEq, Eq)]
 pub enum Event {
    ParticipantLocationChanged {
-        participant_id: PeerId,
+        participant_id: proto::PeerId,
    },
    RemoteVideoTracksChanged {
-        participant_id: PeerId,
+        participant_id: proto::PeerId,
    },
    RemoteProjectShared {
        owner: Arc<User>,
@@ -40,17 +45,20 @@ pub struct Room {
    id: u64,
    live_kit: Option<LiveKitRoom>,
    status: RoomStatus,
+    shared_projects: HashSet<WeakModelHandle<Project>>,
+    joined_projects: HashSet<WeakModelHandle<Project>>,
    local_participant: LocalParticipant,
-    remote_participants: BTreeMap<PeerId, RemoteParticipant>,
+    remote_participants: BTreeMap<u64, RemoteParticipant>,
    pending_participants: Vec<Arc<User>>,
    participant_user_ids: HashSet<u64>,
    pending_call_count: usize,
    leave_when_empty: bool,
    client: Arc<Client>,
    user_store: ModelHandle<UserStore>,
+    follows_by_leader_id_project_id: HashMap<(PeerId, u64), Vec<PeerId>>,
    subscriptions: Vec<client::Subscription>,
    pending_room_update: Option<Task<()>>,
-    maintain_connection: Option<Task<Result<()>>>,
+    maintain_connection: Option<Task<Option<()>>>,
 }

 impl Entity for Room {
@@ -58,7 +66,8 @@ impl Entity for Room {

    fn release(&mut self, _: &mut MutableAppContext) {
        if self.status.is_online() {
-            self.client.send(proto::LeaveRoom {}).log_err();
+            log::info!("room was released, sending leave message");
+            let _ = self.client.send(proto::LeaveRoom {});
        }
    }
 }
@@ -122,12 +131,14 @@ impl Room {
        };

        let maintain_connection =
-            cx.spawn_weak(|this, cx| Self::maintain_connection(this, client.clone(), cx));
+            cx.spawn_weak(|this, cx| Self::maintain_connection(this, client.clone(), cx).log_err());

        Self {
            id,
            live_kit: live_kit_room,
            status: RoomStatus::Online,
+            shared_projects: Default::default(),
+            joined_projects: Default::default(),
            participant_user_ids: Default::default(),
            local_participant: Default::default(),
            remote_participants: Default::default(),
@@ -138,6 +149,7 @@ impl Room {
            pending_room_update: None,
            client,
            user_store,
+            follows_by_leader_id_project_id: Default::default(),
            maintain_connection: Some(maintain_connection),
        }
    }
@@ -229,6 +241,23 @@ impl Room {

        cx.notify();
        cx.emit(Event::Left);
+        log::info!("leaving room");
+
+        for project in self.shared_projects.drain() {
+            if let Some(project) = project.upgrade(cx) {
+                project.update(cx, |project, cx| {
+                    project.unshare(cx).log_err();
+                });
+            }
+        }
+        for project in self.joined_projects.drain() {
+            if let Some(project) = project.upgrade(cx) {
+                project.update(cx, |project, cx| {
+                    project.disconnected_from_host(cx);
+                });
+            }
+        }
+
        self.status = RoomStatus::Offline;
        self.remote_participants.clear();
        self.pending_participants.clear();
@@ -248,19 +277,17 @@ impl Room {
    ) -> Result<()> {
        let mut client_status = client.status();
        loop {
-            let is_connected = client_status
-                .next()
-                .await
-                .map_or(false, |s| s.is_connected());
+            let _ = client_status.try_recv();
+            let is_connected = client_status.borrow().is_connected();
            // Even if we're initially connected, any future change of the status means we momentarily disconnected.
            if !is_connected || client_status.next().await.is_some() {
-                let room_id = this
-                    .upgrade(&cx)
+                log::info!("detected client disconnection");
+
+                this.upgrade(&cx)
                    .ok_or_else(|| anyhow!("room was dropped"))?
                    .update(&mut cx, |this, cx| {
                        this.status = RoomStatus::Rejoining;
                        cx.notify();
-                        this.id
                    });

                // Wait for client to re-establish a connection to the server.
@@ -269,31 +296,29 @@ impl Room {
                    let client_reconnection = async {
                        let mut remaining_attempts = 3;
                        while remaining_attempts > 0 {
-                            if let Some(status) = client_status.next().await {
-                                if status.is_connected() {
-                                    let rejoin_room = async {
-                                        let response =
-                                            client.request(proto::JoinRoom { id: room_id }).await?;
-                                        let room_proto =
-                                            response.room.ok_or_else(|| anyhow!("invalid room"))?;
-                                        this.upgrade(&cx)
-                                            .ok_or_else(|| anyhow!("room was dropped"))?
-                                            .update(&mut cx, |this, cx| {
-                                                this.status = RoomStatus::Online;
-                                                this.apply_room_update(room_proto, cx)
-                                            })?;
-                                        anyhow::Ok(())
-                                    };
+                            if client_status.borrow().is_connected() {
+                                log::info!("client reconnected, attempting to rejoin room");

-                                    if rejoin_room.await.is_ok() {
-                                        return true;
-                                    } else {
-                                        remaining_attempts -= 1;
-                                    }
+                                let Some(this) = this.upgrade(&cx) else { break };
+                                if this
+                                    .update(&mut cx, |this, cx| this.rejoin(cx))
+                                    .await
+                                    .log_err()
+                                    .is_some()
+                                {
+                                    return true;
+                                } else {
+                                    remaining_attempts -= 1;
                                }
-                            } else {
+                            } else if client_status.borrow().is_signed_out() {
                                return false;
                            }
+
+                            log::info!(
+                                "waiting for client status change, remaining attempts {}",
+                                remaining_attempts
+                            );
+                            client_status.next().await;
                        }
                        false
                    }
@@ -303,26 +328,108 @@ impl Room {
                    futures::select_biased! {
                        reconnected = client_reconnection => {
                            if reconnected {
+                                log::info!("successfully reconnected to room");
                                // If we successfully joined the room, go back around the loop
                                // waiting for future connection status changes.
                                continue;
                            }
                        }
-                        _ = reconnection_timeout => {}
+                        _ = reconnection_timeout => {
+                            log::info!("room reconnection timeout expired");
+                        }
                    }
                }

-                // The client failed to re-establish a connection to the server
-                // or an error occurred while trying to re-join the room. Either way
-                // we leave the room and return an error.
-                if let Some(this) = this.upgrade(&cx) {
-                    let _ = this.update(&mut cx, |this, cx| this.leave(cx));
-                }
-                return Err(anyhow!(
-                    "can't reconnect to room: client failed to re-establish connection"
-                ));
+                break;
            }
        }
+
+        // The client failed to re-establish a connection to the server
+        // or an error occurred while trying to re-join the room. Either way
+        // we leave the room and return an error.
+        if let Some(this) = this.upgrade(&cx) {
+            log::info!("reconnection failed, leaving room");
+            let _ = this.update(&mut cx, |this, cx| this.leave(cx));
+        }
+        Err(anyhow!(
+            "can't reconnect to room: client failed to re-establish connection"
+        ))
+    }
+
+    fn rejoin(&mut self, cx: &mut ModelContext<Self>) -> Task<Result<()>> {
+        let mut projects = HashMap::default();
+        let mut reshared_projects = Vec::new();
+        let mut rejoined_projects = Vec::new();
+        self.shared_projects.retain(|project| {
+            if let Some(handle) = project.upgrade(cx) {
+                let project = handle.read(cx);
+                if let Some(project_id) = project.remote_id() {
+                    projects.insert(project_id, handle.clone());
+                    reshared_projects.push(proto::UpdateProject {
+                        project_id,
+                        worktrees: project.worktree_metadata_protos(cx),
+                    });
+                    return true;
+                }
+            }
+            false
+        });
+        self.joined_projects.retain(|project| {
+            if let Some(handle) = project.upgrade(cx) {
+                let project = handle.read(cx);
+                if let Some(project_id) = project.remote_id() {
+                    projects.insert(project_id, handle.clone());
+                    rejoined_projects.push(proto::RejoinProject {
+                        id: project_id,
+                        worktrees: project
+                            .worktrees(cx)
+                            .map(|worktree| {
+                                let worktree = worktree.read(cx);
+                                proto::RejoinWorktree {
+                                    id: worktree.id().to_proto(),
+                                    scan_id: worktree.completed_scan_id() as u64,
+                                }
+                            })
+                            .collect(),
+                    });
+                }
+                return true;
+            }
+            false
+        });
+
+        let response = self.client.request(proto::RejoinRoom {
+            id: self.id,
+            reshared_projects,
+            rejoined_projects,
+        });
+
+        cx.spawn(|this, mut cx| async move {
+            let response = response.await?;
+            let room_proto = response.room.ok_or_else(|| anyhow!("invalid room"))?;
+            this.update(&mut cx, |this, cx| {
+                this.status = RoomStatus::Online;
+                this.apply_room_update(room_proto, cx)?;
+
+                for reshared_project in response.reshared_projects {
+                    if let Some(project) = projects.get(&reshared_project.id) {
+                        project.update(cx, |project, cx| {
+                            project.reshared(reshared_project, cx).log_err();
+                        });
+                    }
+                }
+
+                for rejoined_project in response.rejoined_projects {
+                    if let Some(project) = projects.get(&rejoined_project.id) {
+                        project.update(cx, |project, cx| {
+                            project.rejoined(rejoined_project, cx).log_err();
+                        });
+                    }
+                }
+
+                anyhow::Ok(())
+            })
+        })
    }

    pub fn id(&self) -> u64 {
@@ -337,10 +444,16 @@ impl Room {
        &self.local_participant
    }

-    pub fn remote_participants(&self) -> &BTreeMap<PeerId, RemoteParticipant> {
+    pub fn remote_participants(&self) -> &BTreeMap<u64, RemoteParticipant> {
        &self.remote_participants
    }

+    pub fn remote_participant_for_peer_id(&self, peer_id: PeerId) -> Option<&RemoteParticipant> {
+        self.remote_participants
+            .values()
+            .find(|p| p.peer_id == peer_id)
+    }
+
    pub fn pending_participants(&self) -> &[Arc<User>] {
        &self.pending_participants
    }
@@ -349,6 +462,12 @@ impl Room {
        self.participant_user_ids.contains(&user_id)
    }

+    pub fn followers_for(&self, leader_id: PeerId, project_id: u64) -> &[PeerId] {
+        self.follows_by_leader_id_project_id
+            .get(&(leader_id, project_id))
+            .map_or(&[], |v| v.as_slice())
+    }
+
    async fn handle_room_updated(
        this: ModelHandle<Self>,
        envelope: TypedEnvelope<proto::RoomUpdated>,
@@ -379,11 +498,13 @@ impl Room {
            .iter()
            .map(|p| p.user_id)
            .collect::<Vec<_>>();
+
        let remote_participant_user_ids = room
            .participants
            .iter()
            .map(|p| p.user_id)
            .collect::<Vec<_>>();
+
        let (remote_participants, pending_participants) =
            self.user_store.update(cx, move |user_store, cx| {
                (
@@ -391,6 +512,7 @@ impl Room {
                    user_store.get_users(pending_participant_user_ids, cx),
                )
            });
+
        self.pending_room_update = Some(cx.spawn(|this, mut cx| async move {
            let (remote_participants, pending_participants) =
                futures::join!(remote_participants, pending_participants);
@@ -405,15 +527,13 @@ impl Room {
                }

                if let Some(participants) = remote_participants.log_err() {
-                    let mut participant_peer_ids = HashSet::default();
                    for (participant, user) in room.participants.into_iter().zip(participants) {
-                        let peer_id = PeerId(participant.peer_id);
+                        let Some(peer_id) = participant.peer_id else { continue };
                        this.participant_user_ids.insert(participant.user_id);
-                        participant_peer_ids.insert(peer_id);

                        let old_projects = this
                            .remote_participants
-                            .get(&peer_id)
+                            .get(&participant.user_id)
                            .into_iter()
                            .flat_map(|existing| &existing.projects)
                            .map(|project| project.id)
@@ -435,6 +555,20 @@ impl Room {
                        }

                        for unshared_project_id in old_projects.difference(&new_projects) {
+                            this.joined_projects.retain(|project| {
+                                if let Some(project) = project.upgrade(cx) {
+                                    project.update(cx, |project, cx| {
+                                        if project.remote_id() == Some(*unshared_project_id) {
+                                            project.disconnected_from_host(cx);
+                                            false
+                                        } else {
+                                            true
+                                        }
+                                    })
+                                } else {
+                                    false
+                                }
+                            });
                            cx.emit(Event::RemoteProjectUnshared {
                                project_id: *unshared_project_id,
                            });
@@ -442,9 +576,11 @@ impl Room {

                        let location = ParticipantLocation::from_proto(participant.location)
                            .unwrap_or(ParticipantLocation::External);
-                        if let Some(remote_participant) = this.remote_participants.get_mut(&peer_id)
+                        if let Some(remote_participant) =
+                            this.remote_participants.get_mut(&participant.user_id)
                        {
                            remote_participant.projects = participant.projects;
+                            remote_participant.peer_id = peer_id;
                            if location != remote_participant.location {
                                remote_participant.location = location;
                                cx.emit(Event::ParticipantLocationChanged {
@@ -453,9 +589,10 @@ impl Room {
                            }
                        } else {
                            this.remote_participants.insert(
-                                peer_id,
+                                participant.user_id,
                                RemoteParticipant {
                                    user: user.clone(),
+                                    peer_id,
                                    projects: participant.projects,
                                    location,
                                    tracks: Default::default(),
@@ -464,7 +601,7 @@ impl Room {

                            if let Some(live_kit) = this.live_kit.as_ref() {
                                let tracks =
-                                    live_kit.room.remote_video_tracks(&peer_id.0.to_string());
+                                    live_kit.room.remote_video_tracks(&peer_id.to_string());
                                for track in tracks {
                                    this.remote_video_track_updated(
                                        RemoteVideoTrackUpdate::Subscribed(track),
@@ -476,8 +613,8 @@ impl Room {
                        }
                    }

-                    this.remote_participants.retain(|peer_id, participant| {
-                        if participant_peer_ids.contains(peer_id) {
+                    this.remote_participants.retain(|user_id, participant| {
+                        if this.participant_user_ids.contains(user_id) {
                            true
                        } else {
                            for project in &participant.projects {
@@ -497,8 +634,30 @@ impl Room {
                    }
                }

+                this.follows_by_leader_id_project_id.clear();
+                for follower in room.followers {
+                    let project_id = follower.project_id;
+                    let (leader, follower) = match (follower.leader_id, follower.follower_id) {
+                        (Some(leader), Some(follower)) => (leader, follower),
+
+                        _ => {
+                            log::error!("Follower message {follower:?} missing some state");
+                            continue;
+                        }
+                    };
+
+                    let list = this
+                        .follows_by_leader_id_project_id
+                        .entry((leader, project_id))
+                        .or_insert(Vec::new());
+                    if !list.contains(&follower) {
+                        list.push(follower);
+                    }
+                }
+
                this.pending_room_update.take();
                if this.should_leave() {
+                    log::info!("room is empty, leaving");
                    let _ = this.leave(cx);
                }

@@ -518,11 +677,11 @@ impl Room {
    ) -> Result<()> {
        match change {
            RemoteVideoTrackUpdate::Subscribed(track) => {
-                let peer_id = PeerId(track.publisher_id().parse()?);
+                let user_id = track.publisher_id().parse()?;
                let track_id = track.sid().to_string();
                let participant = self
                    .remote_participants
-                    .get_mut(&peer_id)
+                    .get_mut(&user_id)
                    .ok_or_else(|| anyhow!("subscribed to track by unknown participant"))?;
                participant.tracks.insert(
                    track_id.clone(),
@@ -531,21 +690,21 @@ impl Room {
                    }),
                );
                cx.emit(Event::RemoteVideoTracksChanged {
-                    participant_id: peer_id,
+                    participant_id: participant.peer_id,
                });
            }
            RemoteVideoTrackUpdate::Unsubscribed {
                publisher_id,
                track_id,
            } => {
-                let peer_id = PeerId(publisher_id.parse()?);
+                let user_id = publisher_id.parse()?;
                let participant = self
                    .remote_participants
-                    .get_mut(&peer_id)
+                    .get_mut(&user_id)
                    .ok_or_else(|| anyhow!("unsubscribed from track by unknown participant"))?;
                participant.tracks.remove(&track_id);
                cx.emit(Event::RemoteVideoTracksChanged {
-                    participant_id: peer_id,
+                    participant_id: participant.peer_id,
                });
            }
        }
@@ -607,6 +766,32 @@ impl Room {
        })
    }

+    pub fn join_project(
+        &mut self,
+        id: u64,
+        language_registry: Arc<LanguageRegistry>,
+        fs: Arc<dyn Fs>,
+        cx: &mut ModelContext<Self>,
+    ) -> Task<Result<ModelHandle<Project>>> {
+        let client = self.client.clone();
+        let user_store = self.user_store.clone();
+        cx.spawn(|this, mut cx| async move {
+            let project =
+                Project::remote(id, client, user_store, language_registry, fs, cx.clone()).await?;
+            this.update(&mut cx, |this, cx| {
+                this.joined_projects.retain(|project| {
+                    if let Some(project) = project.upgrade(cx) {
+                        !project.read(cx).is_read_only()
+                    } else {
+                        false
+                    }
+                });
+                this.joined_projects.insert(project.downgrade());
+            });
+            Ok(project)
+        })
+    }
+
    pub(crate) fn share_project(
        &mut self,
        project: ModelHandle<Project>,
@@ -618,31 +803,18 @@ impl Room {

        let request = self.client.request(proto::ShareProject {
            room_id: self.id(),
-            worktrees: project
-                .read(cx)
-                .worktrees(cx)
-                .map(|worktree| {
-                    let worktree = worktree.read(cx);
-                    proto::WorktreeMetadata {
-                        id: worktree.id().to_proto(),
-                        root_name: worktree.root_name().into(),
-                        visible: worktree.is_visible(),
-                        abs_path: worktree.abs_path().to_string_lossy().into(),
-                    }
-                })
-                .collect(),
+            worktrees: project.read(cx).worktree_metadata_protos(cx),
        });
        cx.spawn(|this, mut cx| async move {
            let response = request.await?;

            project.update(&mut cx, |project, cx| {
-                project
-                    .shared(response.project_id, cx)
-                    .detach_and_log_err(cx)
-            });
+                project.shared(response.project_id, cx)
+            })?;

            // If the user's location is in this project, it changes from UnsharedProject to SharedProject.
            this.update(&mut cx, |this, cx| {
+                this.shared_projects.insert(project.downgrade());
                let active_project = this.local_participant.active_project.as_ref();
                if active_project.map_or(false, |location| *location == project) {
                    this.set_location(Some(&project), cx)
@@ -656,6 +828,20 @@ impl Room {
        })
    }

+    pub(crate) fn unshare_project(
+        &mut self,
+        project: ModelHandle<Project>,
+        cx: &mut ModelContext<Self>,
+    ) -> Result<()> {
+        let project_id = match project.read(cx).remote_id() {
+            Some(project_id) => project_id,
+            None => return Ok(()),
+        };
+
+        self.client.send(proto::UnshareProject { project_id })?;
+        project.update(cx, |this, cx| this.unshare(cx))
+    }
+
    pub(crate) fn set_location(
        &mut self,
        project: Option<&ModelHandle<Project>>,
--- a/crates/cli/Cargo.toml
+++ b/crates/cli/Cargo.toml
@@ -2,6 +2,7 @@
 name = "cli"
 version = "0.1.0"
 edition = "2021"
+publish = false

 [lib]
 path = "src/cli.rs"
--- a/crates/cli/src/main.rs
+++ b/crates/cli/src/main.rs
@@ -9,7 +9,13 @@ use core_foundation::{
 use core_services::{kLSLaunchDefaults, LSLaunchURLSpec, LSOpenFromURLSpec, TCFType};
 use ipc_channel::ipc::{IpcOneShotServer, IpcReceiver, IpcSender};
 use serde::Deserialize;
-use std::{ffi::OsStr, fs, path::PathBuf, ptr};
+use std::{
+    ffi::OsStr,
+    fs::{self, OpenOptions},
+    io,
+    path::{Path, PathBuf},
+    ptr,
+};

 #[derive(Parser)]
 #[clap(name = "zed", global_setting(clap::AppSettings::NoAutoVersion))]
@@ -54,6 +60,12 @@ fn main() -> Result<()> {
        return Ok(());
    }

+    for path in args.paths.iter() {
+        if !path.exists() {
+            touch(path.as_path())?;
+        }
+    }
+
    let (tx, rx) = launch_app(bundle_path)?;

    tx.send(CliRequest::Open {
@@ -77,6 +89,13 @@ fn main() -> Result<()> {
    Ok(())
 }

+fn touch(path: &Path) -> io::Result<()> {
+    match OpenOptions::new().create(true).write(true).open(path) {
+        Ok(_) => Ok(()),
+        Err(e) => Err(e),
+    }
+}
+
 fn locate_bundle() -> Result<PathBuf> {
    let cli_path = std::env::current_exe()?.canonicalize()?;
    let mut app_path = cli_path.clone();
--- a/crates/client/Cargo.toml
+++ b/crates/client/Cargo.toml
@@ -2,6 +2,7 @@
 name = "client"
 version = "0.1.0"
 edition = "2021"
+publish = false

 [lib]
 path = "src/client.rs"
--- a/crates/client/src/client.rs
+++ b/crates/client/src/client.rs
@@ -15,7 +15,7 @@ use futures::{future::LocalBoxFuture, AsyncReadExt, FutureExt, SinkExt, StreamEx
 use gpui::{
    actions,
    serde_json::{self, Value},
-    AnyModelHandle, AnyViewHandle, AnyWeakModelHandle, AnyWeakViewHandle, AppContext,
+    AnyModelHandle, AnyViewHandle, AnyWeakModelHandle, AnyWeakViewHandle, AppContext, AppVersion,
    AsyncAppContext, Entity, ModelHandle, MutableAppContext, Task, View, ViewContext, ViewHandle,
 };
 use http::HttpClient;
@@ -23,8 +23,9 @@ use lazy_static::lazy_static;
 use parking_lot::RwLock;
 use postage::watch;
 use rand::prelude::*;
-use rpc::proto::{AnyTypedEnvelope, EntityMessage, EnvelopedMessage, RequestMessage};
+use rpc::proto::{AnyTypedEnvelope, EntityMessage, EnvelopedMessage, PeerId, RequestMessage};
 use serde::Deserialize;
+use settings::{Settings, TelemetrySettings};
 use std::{
    any::TypeId,
    collections::HashMap,
@@ -54,13 +55,18 @@ lazy_static! {
    pub static ref ADMIN_API_TOKEN: Option<String> = std::env::var("ZED_ADMIN_API_TOKEN")
        .ok()
        .and_then(|s| if s.is_empty() { None } else { Some(s) });
+    pub static ref ZED_APP_VERSION: Option<AppVersion> = std::env::var("ZED_APP_VERSION")
+        .ok()
+        .and_then(|v| v.parse().ok());
+    pub static ref ZED_APP_PATH: Option<PathBuf> =
+        std::env::var("ZED_APP_PATH").ok().map(PathBuf::from);
 }

 pub const ZED_SECRET_CLIENT_TOKEN: &str = "618033988749894";
 pub const INITIAL_RECONNECTION_DELAY: Duration = Duration::from_millis(100);
 pub const CONNECTION_TIMEOUT: Duration = Duration::from_secs(5);

-actions!(client, [Authenticate]);
+actions!(client, [Authenticate, SignOut]);

 pub fn init(client: Arc<Client>, cx: &mut MutableAppContext) {
    cx.add_global_action({
@@ -73,6 +79,16 @@ pub fn init(client: Arc<Client>, cx: &mut MutableAppContext) {
            .detach();
        }
    });
+    cx.add_global_action({
+        let client = client.clone();
+        move |_: &SignOut, cx| {
+            let client = client.clone();
+            cx.spawn(|cx| async move {
+                client.disconnect(&cx);
+            })
+            .detach();
+        }
+    });
 }

 pub struct Client {
@@ -140,7 +156,7 @@ impl EstablishConnectionError {
    }
 }

-#[derive(Copy, Clone, Debug, Eq, PartialEq)]
+#[derive(Copy, Clone, Debug, PartialEq)]
 pub enum Status {
    SignedOut,
    UpgradeRequired,
@@ -163,6 +179,10 @@ impl Status {
    pub fn is_connected(&self) -> bool {
        matches!(self, Self::Connected { .. })
    }
+
+    pub fn is_signed_out(&self) -> bool {
+        matches!(self, Self::SignedOut | Self::UpgradeRequired)
+    }
 }

 struct ClientState {
@@ -306,7 +326,7 @@ impl Client {
    pub fn new(http: Arc<dyn HttpClient>, cx: &AppContext) -> Arc<Self> {
        Arc::new(Self {
            id: 0,
-            peer: Peer::new(),
+            peer: Peer::new(0),
            telemetry: Telemetry::new(http.clone(), cx),
            http,
            state: Default::default(),
@@ -333,14 +353,14 @@ impl Client {
    }

    #[cfg(any(test, feature = "test-support"))]
-    pub fn tear_down(&self) {
+    pub fn teardown(&self) {
        let mut state = self.state.write();
        state._reconnect_task.take();
        state.message_handlers.clear();
        state.models_by_message_type.clear();
        state.entities_by_type_and_remote_id.clear();
        state.entity_id_extractors.clear();
-        self.peer.reset();
+        self.peer.teardown();
    }

    #[cfg(any(test, feature = "test-support"))]
@@ -423,7 +443,9 @@ impl Client {
                }));
            }
            Status::SignedOut | Status::UpgradeRequired => {
-                self.telemetry.set_authenticated_user_info(None, false);
+                let telemetry_settings = cx.read(|cx| cx.global::<Settings>().telemetry());
+                self.telemetry
+                    .set_authenticated_user_info(None, false, telemetry_settings);
                state._reconnect_task.take();
            }
            _ => {}
@@ -706,7 +728,13 @@ impl Client {
            credentials = read_credentials_from_keychain(cx);
            read_from_keychain = credentials.is_some();
            if read_from_keychain {
-                self.report_event("read credentials from keychain", Default::default());
+                cx.read(|cx| {
+                    self.report_event(
+                        "read credentials from keychain",
+                        Default::default(),
+                        cx.global::<Settings>().telemetry(),
+                    );
+                });
            }
        }
        if credentials.is_none() {
@@ -810,7 +838,11 @@ impl Client {
                        hello_message_type_name
                    )
                })?;
-            Ok(PeerId(hello.payload.peer_id))
+            let peer_id = hello
+                .payload
+                .peer_id
+                .ok_or_else(|| anyhow!("invalid peer id"))?;
+            Ok(peer_id)
        };

        let peer_id = match peer_id.await {
@@ -822,7 +854,7 @@ impl Client {
        };

        log::info!(
-            "set status to connected (connection id: {}, peer id: {})",
+            "set status to connected (connection id: {:?}, peer id: {:?})",
            connection_id,
            peer_id
        );
@@ -853,7 +885,7 @@ impl Client {
            .spawn(async move {
                match handle_io.await {
                    Ok(()) => {
-                        if *this.status().borrow()
+                        if this.status().borrow().clone()
                            == (Status::Connected {
                                connection_id,
                                peer_id,
@@ -993,6 +1025,8 @@ impl Client {
        let executor = cx.background();
        let telemetry = self.telemetry.clone();
        let http = self.http.clone();
+        let metrics_enabled = cx.read(|cx| cx.global::<Settings>().telemetry());
+
        executor.clone().spawn(async move {
            // Generate a pair of asymmetric encryption keys. The public key will be used by the
            // zed server to encrypt the user's access token, so that it can'be intercepted by
@@ -1075,7 +1109,11 @@ impl Client {
                .context("failed to decrypt access token")?;
            platform.activate(true);

-            telemetry.report_event("authenticate with browser", Default::default());
+            telemetry.report_event(
+                "authenticate with browser",
+                Default::default(),
+                metrics_enabled,
+            );

            Ok(Credentials {
                user_id: user_id.parse()?,
@@ -1128,11 +1166,9 @@ impl Client {
        })
    }

-    pub fn disconnect(self: &Arc<Self>, cx: &AsyncAppContext) -> Result<()> {
-        let conn_id = self.connection_id()?;
-        self.peer.disconnect(conn_id);
+    pub fn disconnect(self: &Arc<Self>, cx: &AsyncAppContext) {
+        self.peer.teardown();
        self.set_status(Status::SignedOut, cx);
-        Ok(())
    }

    fn connection_id(&self) -> Result<ConnectionId> {
@@ -1194,7 +1230,7 @@ impl Client {
        let mut state = self.state.write();
        let type_name = message.payload_type_name();
        let payload_type_id = message.payload_type_id();
-        let sender_id = message.original_sender_id().map(|id| id.0);
+        let sender_id = message.original_sender_id();

        let mut subscriber = None;

@@ -1231,6 +1267,7 @@ impl Client {
            subscriber
        } else {
            log::info!("unhandled message {}", type_name);
+            self.peer.respond_with_unhandled_message(message).log_err();
            return;
        };

@@ -1274,6 +1311,7 @@ impl Client {
                .detach();
        } else {
            log::info!("unhandled message {}", type_name);
+            self.peer.respond_with_unhandled_message(message).log_err();
        }
    }

@@ -1281,13 +1319,27 @@ impl Client {
        self.telemetry.start();
    }

-    pub fn report_event(&self, kind: &str, properties: Value) {
-        self.telemetry.report_event(kind, properties.clone());
+    pub fn report_event(
+        &self,
+        kind: &str,
+        properties: Value,
+        telemetry_settings: TelemetrySettings,
+    ) {
+        self.telemetry
+            .report_event(kind, properties.clone(), telemetry_settings);
    }

    pub fn telemetry_log_file_path(&self) -> Option<PathBuf> {
        self.telemetry.log_file_path()
    }
+
+    pub fn metrics_id(&self) -> Option<Arc<str>> {
+        self.telemetry.metrics_id()
+    }
+
+    pub fn is_staff(&self) -> Option<bool> {
+        self.telemetry.is_staff()
+    }
 }

 impl WeakSubscriber {
--- a/crates/client/src/http.rs
+++ b/crates/client/src/http.rs
@@ -9,7 +9,7 @@ pub use isahc::{
    Error,
 };
 use smol::future::FutureExt;
-use std::sync::Arc;
+use std::{sync::Arc, time::Duration};
 pub use url::Url;

 pub type Request = isahc::Request<AsyncBody>;
@@ -41,7 +41,13 @@ pub trait HttpClient: Send + Sync {
 }

 pub fn client() -> Arc<dyn HttpClient> {
-    Arc::new(isahc::HttpClient::builder().build().unwrap())
+    Arc::new(
+        isahc::HttpClient::builder()
+            .connect_timeout(Duration::from_secs(5))
+            .low_speed_timeout(100, Duration::from_secs(5))
+            .build()
+            .unwrap(),
+    )
 }

 impl HttpClient for isahc::HttpClient {
--- a/crates/client/src/telemetry.rs
+++ b/crates/client/src/telemetry.rs
@@ -10,6 +10,7 @@ use lazy_static::lazy_static;
 use parking_lot::Mutex;
 use serde::Serialize;
 use serde_json::json;
+use settings::TelemetrySettings;
 use std::{
    io::Write,
    mem,
@@ -39,6 +40,7 @@ struct TelemetryState {
    next_event_id: usize,
    flush_task: Option<Task<()>>,
    log_file: Option<NamedTempFile>,
+    is_staff: Option<bool>,
 }

 const MIXPANEL_EVENTS_URL: &'static str = "https://api.mixpanel.com/track";
@@ -124,6 +126,7 @@ impl Telemetry {
                flush_task: Default::default(),
                next_event_id: 0,
                log_file: None,
+                is_staff: None,
            }),
        });

@@ -184,16 +187,24 @@ impl Telemetry {
            .detach();
    }

+    /// This method takes the entire TelemetrySettings struct in order to force client code
+    /// to pull the struct out of the settings global. Do not remove!
    pub fn set_authenticated_user_info(
        self: &Arc<Self>,
        metrics_id: Option<String>,
        is_staff: bool,
+        telemetry_settings: TelemetrySettings,
    ) {
+        if !telemetry_settings.metrics() {
+            return;
+        }
+
        let this = self.clone();
        let mut state = self.state.lock();
        let device_id = state.device_id.clone();
        let metrics_id: Option<Arc<str>> = metrics_id.map(|id| id.into());
        state.metrics_id = metrics_id.clone();
+        state.is_staff = Some(is_staff);
        drop(state);

        if let Some((token, device_id)) = MIXPANEL_TOKEN.as_ref().zip(device_id) {
@@ -221,7 +232,16 @@ impl Telemetry {
        }
    }

-    pub fn report_event(self: &Arc<Self>, kind: &str, properties: Value) {
+    pub fn report_event(
+        self: &Arc<Self>,
+        kind: &str,
+        properties: Value,
+        telemetry_settings: TelemetrySettings,
+    ) {
+        if !telemetry_settings.metrics() {
+            return;
+        }
+
        let mut state = self.state.lock();
        let event = MixpanelEvent {
            event: kind.to_string(),
@@ -261,6 +281,14 @@ impl Telemetry {
        }
    }

+    pub fn metrics_id(self: &Arc<Self>) -> Option<Arc<str>> {
+        self.state.lock().metrics_id.clone()
+    }
+
+    pub fn is_staff(self: &Arc<Self>) -> Option<bool> {
+        self.state.lock().is_staff
+    }
+
    fn flush(self: &Arc<Self>) {
        let mut state = self.state.lock();
        let mut events = mem::take(&mut state.queue);
--- a/crates/client/src/test.rs
+++ b/crates/client/src/test.rs
@@ -35,7 +35,7 @@ impl FakeServer {
        cx: &TestAppContext,
    ) -> Self {
        let server = Self {
-            peer: Peer::new(),
+            peer: Peer::new(0),
            state: Default::default(),
            user_id: client_user_id,
            executor: cx.foreground(),
@@ -92,7 +92,7 @@ impl FakeServer {
                        peer.send(
                            connection_id,
                            proto::Hello {
-                                peer_id: connection_id.0,
+                                peer_id: Some(connection_id.into()),
                            },
                        )
                        .unwrap();
--- a/crates/client/src/user.rs
+++ b/crates/client/src/user.rs
@@ -5,8 +5,9 @@ use futures::{channel::mpsc, future, AsyncReadExt, Future, StreamExt};
 use gpui::{AsyncAppContext, Entity, ImageData, ModelContext, ModelHandle, Task};
 use postage::{sink::Sink, watch};
 use rpc::proto::{RequestMessage, UsersResponse};
+use settings::Settings;
 use std::sync::{Arc, Weak};
-use util::TryFutureExt as _;
+use util::{StaffMode, TryFutureExt as _};

 #[derive(Default, Debug)]
 pub struct User {
@@ -141,14 +142,24 @@ impl UserStore {
                                let fetch_metrics_id =
                                    client.request(proto::GetPrivateUserInfo {}).log_err();
                                let (user, info) = futures::join!(fetch_user, fetch_metrics_id);
-                                if let Some(info) = info {
-                                    client.telemetry.set_authenticated_user_info(
-                                        Some(info.metrics_id.clone()),
-                                        info.staff,
-                                    );
-                                } else {
-                                    client.telemetry.set_authenticated_user_info(None, false);
-                                }
+                                client.telemetry.set_authenticated_user_info(
+                                    info.as_ref().map(|info| info.metrics_id.clone()),
+                                    info.as_ref().map(|info| info.staff).unwrap_or(false),
+                                    cx.read(|cx| cx.global::<Settings>().telemetry()),
+                                );
+
+                                cx.update(|cx| {
+                                    cx.update_default_global(|staff_mode: &mut StaffMode, _| {
+                                        if !staff_mode.0 {
+                                            *staff_mode = StaffMode(
+                                                info.as_ref()
+                                                    .map(|info| info.staff)
+                                                    .unwrap_or_default(),
+                                            )
+                                        }
+                                        ()
+                                    });
+                                });

                                current_user_tx.send(user).await.ok();
                            }
--- a/crates/clock/Cargo.toml
+++ b/crates/clock/Cargo.toml
@@ -2,6 +2,7 @@
 name = "clock"
 version = "0.1.0"
 edition = "2021"
+publish = false

 [lib]
 path = "src/clock.rs"
--- a/crates/collab/.env.toml
+++ b/crates/collab/.env.toml
@@ -2,6 +2,7 @@ DATABASE_URL = "postgres://postgres@localhost/zed"
 HTTP_PORT = 8080
 API_TOKEN = "secret"
 INVITE_LINK_PREFIX = "http://localhost:3000/invites/"
+ZED_ENVIRONMENT = "development"
 LIVE_KIT_SERVER = "http://localhost:7880"
 LIVE_KIT_KEY = "devkey"
 LIVE_KIT_SECRET = "secret"
--- a/crates/collab/Cargo.toml
+++ b/crates/collab/Cargo.toml
@@ -3,7 +3,8 @@ authors = ["Nathan Sobo <nathan@zed.dev>"]
 default-run = "collab"
 edition = "2021"
 name = "collab"
-version = "0.3.4"
+version = "0.6.1"
+publish = false

 [[bin]]
 name = "collab"
--- a/crates/collab/k8s/manifest.template.yml
+++ b/crates/collab/k8s/manifest.template.yml
@@ -59,6 +59,12 @@ spec:
          ports:
            - containerPort: 8080
              protocol: TCP
+          readinessProbe:
+            httpGet:
+              path: /
+              port: 8080
+            initialDelaySeconds: 1
+            periodSeconds: 1
          env:
            - name: HTTP_PORT
              value: "8080"
@@ -93,6 +99,8 @@ spec:
              value: ${RUST_LOG}
            - name: LOG_JSON
              value: "true"
+            - name: ZED_ENVIRONMENT
+              value: ${ZED_ENVIRONMENT}
          securityContext:
            capabilities:
              # FIXME - Switch to the more restrictive `PERFMON` capability.
--- a/crates/collab/migrations.sqlite/20221109000000_test_schema.sql
+++ b/crates/collab/migrations.sqlite/20221109000000_test_schema.sql
@@ -43,11 +43,12 @@ CREATE TABLE "projects" (
    "id" INTEGER PRIMARY KEY AUTOINCREMENT,
    "room_id" INTEGER REFERENCES rooms (id) NOT NULL,
    "host_user_id" INTEGER REFERENCES users (id) NOT NULL,
-    "host_connection_id" INTEGER NOT NULL,
-    "host_connection_epoch" TEXT NOT NULL,
+    "host_connection_id" INTEGER,
+    "host_connection_server_id" INTEGER REFERENCES servers (id) ON DELETE CASCADE,
    "unregistered" BOOLEAN NOT NULL DEFAULT FALSE
 );
-CREATE INDEX "index_projects_on_host_connection_epoch" ON "projects" ("host_connection_epoch");
+CREATE INDEX "index_projects_on_host_connection_server_id" ON "projects" ("host_connection_server_id");
+CREATE INDEX "index_projects_on_host_connection_id_and_host_connection_server_id" ON "projects" ("host_connection_id", "host_connection_server_id");

 CREATE TABLE "worktrees" (
    "project_id" INTEGER NOT NULL REFERENCES projects (id) ON DELETE CASCADE,
@@ -56,7 +57,8 @@ CREATE TABLE "worktrees" (
    "abs_path" VARCHAR NOT NULL,
    "visible" BOOL NOT NULL,
    "scan_id" INTEGER NOT NULL,
-    "is_complete" BOOL NOT NULL,
+    "is_complete" BOOL NOT NULL DEFAULT FALSE,
+    "completed_scan_id" INTEGER NOT NULL,
    PRIMARY KEY(project_id, id)
 );
 CREATE INDEX "index_worktrees_on_project_id" ON "worktrees" ("project_id");
@@ -64,6 +66,7 @@ CREATE INDEX "index_worktrees_on_project_id" ON "worktrees" ("project_id");
 CREATE TABLE "worktree_entries" (
    "project_id" INTEGER NOT NULL,
    "worktree_id" INTEGER NOT NULL,
+    "scan_id" INTEGER NOT NULL,
    "id" INTEGER NOT NULL,
    "is_dir" BOOL NOT NULL,
    "path" VARCHAR NOT NULL,
@@ -72,6 +75,7 @@ CREATE TABLE "worktree_entries" (
    "mtime_nanos" INTEGER NOT NULL,
    "is_symlink" BOOL NOT NULL,
    "is_ignored" BOOL NOT NULL,
+    "is_deleted" BOOL NOT NULL,
    PRIMARY KEY(project_id, worktree_id, id),
    FOREIGN KEY(project_id, worktree_id) REFERENCES worktrees (project_id, id) ON DELETE CASCADE
 );
@@ -103,34 +107,53 @@ CREATE TABLE "project_collaborators" (
    "id" INTEGER PRIMARY KEY AUTOINCREMENT,
    "project_id" INTEGER NOT NULL REFERENCES projects (id) ON DELETE CASCADE,
    "connection_id" INTEGER NOT NULL,
-    "connection_epoch" TEXT NOT NULL,
+    "connection_server_id" INTEGER NOT NULL REFERENCES servers (id) ON DELETE CASCADE,
    "user_id" INTEGER NOT NULL,
    "replica_id" INTEGER NOT NULL,
    "is_host" BOOLEAN NOT NULL
 );
 CREATE INDEX "index_project_collaborators_on_project_id" ON "project_collaborators" ("project_id");
 CREATE UNIQUE INDEX "index_project_collaborators_on_project_id_and_replica_id" ON "project_collaborators" ("project_id", "replica_id");
-CREATE INDEX "index_project_collaborators_on_connection_epoch" ON "project_collaborators" ("connection_epoch");
+CREATE INDEX "index_project_collaborators_on_connection_server_id" ON "project_collaborators" ("connection_server_id");
 CREATE INDEX "index_project_collaborators_on_connection_id" ON "project_collaborators" ("connection_id");
-CREATE UNIQUE INDEX "index_project_collaborators_on_project_id_connection_id_and_epoch" ON "project_collaborators" ("project_id", "connection_id", "connection_epoch");
+CREATE UNIQUE INDEX "index_project_collaborators_on_project_id_connection_id_and_server_id" ON "project_collaborators" ("project_id", "connection_id", "connection_server_id");

 CREATE TABLE "room_participants" (
    "id" INTEGER PRIMARY KEY AUTOINCREMENT,
    "room_id" INTEGER NOT NULL REFERENCES rooms (id),
    "user_id" INTEGER NOT NULL REFERENCES users (id),
    "answering_connection_id" INTEGER,
-    "answering_connection_epoch" TEXT,
+    "answering_connection_server_id" INTEGER REFERENCES servers (id) ON DELETE CASCADE,
    "answering_connection_lost" BOOLEAN NOT NULL,
    "location_kind" INTEGER,
    "location_project_id" INTEGER,
    "initial_project_id" INTEGER,
    "calling_user_id" INTEGER NOT NULL REFERENCES users (id),
    "calling_connection_id" INTEGER NOT NULL,
-    "calling_connection_epoch" TEXT NOT NULL
+    "calling_connection_server_id" INTEGER REFERENCES servers (id) ON DELETE SET NULL
 );
 CREATE UNIQUE INDEX "index_room_participants_on_user_id" ON "room_participants" ("user_id");
 CREATE INDEX "index_room_participants_on_room_id" ON "room_participants" ("room_id");
-CREATE INDEX "index_room_participants_on_answering_connection_epoch" ON "room_participants" ("answering_connection_epoch");
-CREATE INDEX "index_room_participants_on_calling_connection_epoch" ON "room_participants" ("calling_connection_epoch");
+CREATE INDEX "index_room_participants_on_answering_connection_server_id" ON "room_participants" ("answering_connection_server_id");
+CREATE INDEX "index_room_participants_on_calling_connection_server_id" ON "room_participants" ("calling_connection_server_id");
 CREATE INDEX "index_room_participants_on_answering_connection_id" ON "room_participants" ("answering_connection_id");
-CREATE UNIQUE INDEX "index_room_participants_on_answering_connection_id_and_answering_connection_epoch" ON "room_participants" ("answering_connection_id", "answering_connection_epoch");
+CREATE UNIQUE INDEX "index_room_participants_on_answering_connection_id_and_answering_connection_server_id" ON "room_participants" ("answering_connection_id", "answering_connection_server_id");
+
+CREATE TABLE "servers" (
+    "id" INTEGER PRIMARY KEY AUTOINCREMENT,
+    "environment" VARCHAR NOT NULL
+);
+
+CREATE TABLE "followers" (
+    "id" INTEGER PRIMARY KEY AUTOINCREMENT,
+    "room_id" INTEGER NOT NULL REFERENCES rooms (id) ON DELETE CASCADE,
+    "project_id" INTEGER NOT NULL REFERENCES projects (id) ON DELETE CASCADE,
+    "leader_connection_server_id" INTEGER NOT NULL REFERENCES servers (id) ON DELETE CASCADE,
+    "leader_connection_id" INTEGER NOT NULL,
+    "follower_connection_server_id" INTEGER NOT NULL REFERENCES servers (id) ON DELETE CASCADE,
+    "follower_connection_id" INTEGER NOT NULL
+);
+CREATE UNIQUE INDEX 
+    "index_followers_on_project_id_and_leader_connection_server_id_and_leader_connection_id_and_follower_connection_server_id_and_follower_connection_id"
+ON "followers" ("project_id", "leader_connection_server_id", "leader_connection_id", "follower_connection_server_id", "follower_connection_id");
+CREATE INDEX "index_followers_on_room_id" ON "followers" ("room_id");
--- a/crates/collab/migrations/20221214144346_change_epoch_from_uuid_to_integer.sql
+++ b/crates/collab/migrations/20221214144346_change_epoch_from_uuid_to_integer.sql
@@ -0,0 +1,30 @@
+CREATE TABLE servers (
+    id SERIAL PRIMARY KEY,
+    environment VARCHAR NOT NULL
+);
+
+DROP TABLE worktree_extensions;
+DROP TABLE project_activity_periods;
+DELETE from projects;
+ALTER TABLE projects
+    DROP COLUMN host_connection_epoch,
+    ADD COLUMN host_connection_server_id INTEGER REFERENCES servers (id) ON DELETE CASCADE;
+CREATE INDEX "index_projects_on_host_connection_server_id" ON "projects" ("host_connection_server_id");
+CREATE INDEX "index_projects_on_host_connection_id_and_host_connection_server_id" ON "projects" ("host_connection_id", "host_connection_server_id");
+
+DELETE FROM project_collaborators;
+ALTER TABLE project_collaborators
+    DROP COLUMN connection_epoch,
+    ADD COLUMN connection_server_id INTEGER NOT NULL REFERENCES servers (id) ON DELETE CASCADE;
+CREATE INDEX "index_project_collaborators_on_connection_server_id" ON "project_collaborators" ("connection_server_id");
+CREATE UNIQUE INDEX "index_project_collaborators_on_project_id_connection_id_and_server_id" ON "project_collaborators" ("project_id", "connection_id", "connection_server_id");
+
+DELETE FROM room_participants;
+ALTER TABLE room_participants
+    DROP COLUMN answering_connection_epoch,
+    DROP COLUMN calling_connection_epoch,
+    ADD COLUMN answering_connection_server_id INTEGER REFERENCES servers (id) ON DELETE CASCADE,
+    ADD COLUMN calling_connection_server_id INTEGER REFERENCES servers (id) ON DELETE SET NULL;
+CREATE INDEX "index_room_participants_on_answering_connection_server_id" ON "room_participants" ("answering_connection_server_id");
+CREATE INDEX "index_room_participants_on_calling_connection_server_id" ON "room_participants" ("calling_connection_server_id");
+CREATE UNIQUE INDEX "index_room_participants_on_answering_connection_id_and_answering_connection_server_id" ON "room_participants" ("answering_connection_id", "answering_connection_server_id");
--- a/crates/collab/migrations/20221219181850_project_reconnection_support.sql
+++ b/crates/collab/migrations/20221219181850_project_reconnection_support.sql
@@ -0,0 +1,3 @@
+ALTER TABLE "worktree_entries"
+    ADD COLUMN "scan_id" INT8,
+    ADD COLUMN "is_deleted" BOOL;
--- a/crates/collab/migrations/20230103200902_replace_is_completed_with_completed_scan_id.sql
+++ b/crates/collab/migrations/20230103200902_replace_is_completed_with_completed_scan_id.sql
@@ -0,0 +1,3 @@
+ALTER TABLE worktrees
+    ALTER COLUMN is_complete SET DEFAULT FALSE,
+    ADD COLUMN completed_scan_id INT8;
--- a/crates/collab/migrations/20230202155735_followers.sql
+++ b/crates/collab/migrations/20230202155735_followers.sql
@@ -0,0 +1,15 @@
+CREATE TABLE IF NOT EXISTS "followers" (
+    "id" SERIAL PRIMARY KEY,
+    "room_id" INTEGER NOT NULL REFERENCES rooms (id) ON DELETE CASCADE,
+    "project_id" INTEGER NOT NULL REFERENCES projects (id) ON DELETE CASCADE,
+    "leader_connection_server_id" INTEGER NOT NULL REFERENCES servers (id) ON DELETE CASCADE,
+    "leader_connection_id" INTEGER NOT NULL,
+    "follower_connection_server_id" INTEGER NOT NULL REFERENCES servers (id) ON DELETE CASCADE,
+    "follower_connection_id" INTEGER NOT NULL
+);
+
+CREATE UNIQUE INDEX 
+    "index_followers_on_project_id_and_leader_connection_server_id_and_leader_connection_id_and_follower_connection_server_id_and_follower_connection_id"
+ON "followers" ("project_id", "leader_connection_server_id", "leader_connection_id", "follower_connection_server_id", "follower_connection_id");
+
+CREATE INDEX "index_followers_on_room_id" ON "followers" ("room_id");
--- a/crates/collab/src/api.rs
+++ b/crates/collab/src/api.rs
@@ -353,6 +353,8 @@ pub struct CreateInviteFromCodeParams {
    invite_code: String,
    email_address: String,
    device_id: Option<String>,
+    #[serde(default)]
+    added_to_mailing_list: bool,
 }

 async fn create_invite_from_code(
@@ -365,6 +367,7 @@ async fn create_invite_from_code(
                &params.invite_code,
                &params.email_address,
                params.device_id.as_deref(),
+                params.added_to_mailing_list,
            )
            .await?,
    ))
--- a/crates/collab/src/db.rs
+++ b/crates/collab/src/db.rs
--- a/crates/collab/src/db/follower.rs
+++ b/crates/collab/src/db/follower.rs
@@ -0,0 +1,51 @@
+use super::{FollowerId, ProjectId, RoomId, ServerId};
+use rpc::ConnectionId;
+use sea_orm::entity::prelude::*;
+use serde::Serialize;
+
+#[derive(Clone, Debug, Default, PartialEq, Eq, DeriveEntityModel, Serialize)]
+#[sea_orm(table_name = "followers")]
+pub struct Model {
+    #[sea_orm(primary_key)]
+    pub id: FollowerId,
+    pub room_id: RoomId,
+    pub project_id: ProjectId,
+    pub leader_connection_server_id: ServerId,
+    pub leader_connection_id: i32,
+    pub follower_connection_server_id: ServerId,
+    pub follower_connection_id: i32,
+}
+
+impl Model {
+    pub fn leader_connection(&self) -> ConnectionId {
+        ConnectionId {
+            owner_id: self.leader_connection_server_id.0 as u32,
+            id: self.leader_connection_id as u32,
+        }
+    }
+
+    pub fn follower_connection(&self) -> ConnectionId {
+        ConnectionId {
+            owner_id: self.follower_connection_server_id.0 as u32,
+            id: self.follower_connection_id as u32,
+        }
+    }
+}
+
+#[derive(Copy, Clone, Debug, EnumIter, DeriveRelation)]
+pub enum Relation {
+    #[sea_orm(
+        belongs_to = "super::room::Entity",
+        from = "Column::RoomId",
+        to = "super::room::Column::Id"
+    )]
+    Room,
+}
+
+impl Related<super::room::Entity> for Entity {
+    fn to() -> RelationDef {
+        Relation::Room.def()
+    }
+}
+
+impl ActiveModelBehavior for ActiveModel {}
--- a/crates/collab/src/db/project.rs
+++ b/crates/collab/src/db/project.rs
@@ -1,4 +1,6 @@
-use super::{ProjectId, RoomId, UserId};
+use super::{ProjectId, Result, RoomId, ServerId, UserId};
+use anyhow::anyhow;
+use rpc::ConnectionId;
 use sea_orm::entity::prelude::*;

 #[derive(Clone, Debug, PartialEq, Eq, DeriveEntityModel)]
@@ -8,8 +10,23 @@ pub struct Model {
    pub id: ProjectId,
    pub room_id: RoomId,
    pub host_user_id: UserId,
-    pub host_connection_id: i32,
-    pub host_connection_epoch: Uuid,
+    pub host_connection_id: Option<i32>,
+    pub host_connection_server_id: Option<ServerId>,
+}
+
+impl Model {
+    pub fn host_connection(&self) -> Result<ConnectionId> {
+        let host_connection_server_id = self
+            .host_connection_server_id
+            .ok_or_else(|| anyhow!("empty host_connection_server_id"))?;
+        let host_connection_id = self
+            .host_connection_id
+            .ok_or_else(|| anyhow!("empty host_connection_id"))?;
+        Ok(ConnectionId {
+            owner_id: host_connection_server_id.0 as u32,
+            id: host_connection_id as u32,
+        })
+    }
 }

 #[derive(Copy, Clone, Debug, EnumIter, DeriveRelation)]
--- a/crates/collab/src/db/project_collaborator.rs
+++ b/crates/collab/src/db/project_collaborator.rs
@@ -1,4 +1,5 @@
-use super::{ProjectCollaboratorId, ProjectId, ReplicaId, UserId};
+use super::{ProjectCollaboratorId, ProjectId, ReplicaId, ServerId, UserId};
+use rpc::ConnectionId;
 use sea_orm::entity::prelude::*;

 #[derive(Clone, Debug, PartialEq, Eq, DeriveEntityModel)]
@@ -8,12 +9,21 @@ pub struct Model {
    pub id: ProjectCollaboratorId,
    pub project_id: ProjectId,
    pub connection_id: i32,
-    pub connection_epoch: Uuid,
+    pub connection_server_id: ServerId,
    pub user_id: UserId,
    pub replica_id: ReplicaId,
    pub is_host: bool,
 }

+impl Model {
+    pub fn connection(&self) -> ConnectionId {
+        ConnectionId {
+            owner_id: self.connection_server_id.0 as u32,
+            id: self.connection_id as u32,
+        }
+    }
+}
+
 #[derive(Copy, Clone, Debug, EnumIter, DeriveRelation)]
 pub enum Relation {
    #[sea_orm(
--- a/crates/collab/src/db/room.rs
+++ b/crates/collab/src/db/room.rs
@@ -15,6 +15,8 @@ pub enum Relation {
    RoomParticipant,
    #[sea_orm(has_many = "super::project::Entity")]
    Project,
+    #[sea_orm(has_many = "super::follower::Entity")]
+    Follower,
 }

 impl Related<super::room_participant::Entity> for Entity {
@@ -29,4 +31,10 @@ impl Related<super::project::Entity> for Entity {
    }
 }

+impl Related<super::follower::Entity> for Entity {
+    fn to() -> RelationDef {
+        Relation::Follower.def()
+    }
+}
+
 impl ActiveModelBehavior for ActiveModel {}
--- a/crates/collab/src/db/room_participant.rs
+++ b/crates/collab/src/db/room_participant.rs
@@ -1,4 +1,4 @@
-use super::{ProjectId, RoomId, RoomParticipantId, UserId};
+use super::{ProjectId, RoomId, RoomParticipantId, ServerId, UserId};
 use sea_orm::entity::prelude::*;

 #[derive(Clone, Debug, PartialEq, Eq, DeriveEntityModel)]
@@ -9,14 +9,14 @@ pub struct Model {
    pub room_id: RoomId,
    pub user_id: UserId,
    pub answering_connection_id: Option<i32>,
-    pub answering_connection_epoch: Option<Uuid>,
+    pub answering_connection_server_id: Option<ServerId>,
    pub answering_connection_lost: bool,
    pub location_kind: Option<i32>,
    pub location_project_id: Option<ProjectId>,
    pub initial_project_id: Option<ProjectId>,
    pub calling_user_id: UserId,
    pub calling_connection_id: i32,
-    pub calling_connection_epoch: Uuid,
+    pub calling_connection_server_id: Option<ServerId>,
 }

 #[derive(Copy, Clone, Debug, EnumIter, DeriveRelation)]
--- a/crates/collab/src/db/server.rs
+++ b/crates/collab/src/db/server.rs
@@ -0,0 +1,15 @@
+use super::ServerId;
+use sea_orm::entity::prelude::*;
+
+#[derive(Clone, Debug, PartialEq, Eq, DeriveEntityModel)]
+#[sea_orm(table_name = "servers")]
+pub struct Model {
+    #[sea_orm(primary_key)]
+    pub id: ServerId,
+    pub environment: String,
+}
+
+#[derive(Copy, Clone, Debug, EnumIter, DeriveRelation)]
+pub enum Relation {}
+
+impl ActiveModelBehavior for ActiveModel {}
--- a/crates/collab/src/db/tests.rs
+++ b/crates/collab/src/db/tests.rs
@@ -410,6 +410,8 @@ test_both_dbs!(
    test_project_count_sqlite,
    db,
    {
+        let owner_id = db.create_server("test").await.unwrap().0 as u32;
+
        let user1 = db
            .create_user(
                &format!("admin@example.com"),
@@ -436,36 +438,44 @@ test_both_dbs!(
            .unwrap();

        let room_id = RoomId::from_proto(
-            db.create_room(user1.user_id, ConnectionId(0), "")
+            db.create_room(user1.user_id, ConnectionId { owner_id, id: 0 }, "")
                .await
                .unwrap()
                .id,
        );
-        db.call(room_id, user1.user_id, ConnectionId(0), user2.user_id, None)
-            .await
-            .unwrap();
-        db.join_room(room_id, user2.user_id, ConnectionId(1))
+        db.call(
+            room_id,
+            user1.user_id,
+            ConnectionId { owner_id, id: 0 },
+            user2.user_id,
+            None,
+        )
+        .await
+        .unwrap();
+        db.join_room(room_id, user2.user_id, ConnectionId { owner_id, id: 1 })
            .await
            .unwrap();
        assert_eq!(db.project_count_excluding_admins().await.unwrap(), 0);

-        db.share_project(room_id, ConnectionId(1), &[])
+        db.share_project(room_id, ConnectionId { owner_id, id: 1 }, &[])
            .await
            .unwrap();
        assert_eq!(db.project_count_excluding_admins().await.unwrap(), 1);

-        db.share_project(room_id, ConnectionId(1), &[])
+        db.share_project(room_id, ConnectionId { owner_id, id: 1 }, &[])
            .await
            .unwrap();
        assert_eq!(db.project_count_excluding_admins().await.unwrap(), 2);

        // Projects shared by admins aren't counted.
-        db.share_project(room_id, ConnectionId(0), &[])
+        db.share_project(room_id, ConnectionId { owner_id, id: 0 }, &[])
            .await
            .unwrap();
        assert_eq!(db.project_count_excluding_admins().await.unwrap(), 2);

-        db.leave_room(ConnectionId(1)).await.unwrap();
+        db.leave_room(ConnectionId { owner_id, id: 1 })
+            .await
+            .unwrap();
        assert_eq!(db.project_count_excluding_admins().await.unwrap(), 0);
    }
 );
@@ -557,7 +567,12 @@ async fn test_invite_codes() {

    // User 2 redeems the invite code and becomes a contact of user 1.
    let user2_invite = db
-        .create_invite_from_code(&invite_code, "user2@example.com", Some("user-2-device-id"))
+        .create_invite_from_code(
+            &invite_code,
+            "user2@example.com",
+            Some("user-2-device-id"),
+            true,
+        )
        .await
        .unwrap();
    let NewUserResult {
@@ -607,7 +622,7 @@ async fn test_invite_codes() {

    // User 3 redeems the invite code and becomes a contact of user 1.
    let user3_invite = db
-        .create_invite_from_code(&invite_code, "user3@example.com", None)
+        .create_invite_from_code(&invite_code, "user3@example.com", None, true)
        .await
        .unwrap();
    let NewUserResult {
@@ -662,9 +677,14 @@ async fn test_invite_codes() {
    );

    // Trying to reedem the code for the third time results in an error.
-    db.create_invite_from_code(&invite_code, "user4@example.com", Some("user-4-device-id"))
-        .await
-        .unwrap_err();
+    db.create_invite_from_code(
+        &invite_code,
+        "user4@example.com",
+        Some("user-4-device-id"),
+        true,
+    )
+    .await
+    .unwrap_err();

    // Invite count can be updated after the code has been created.
    db.set_invite_count_for_user(user1, 2).await.unwrap();
@@ -674,7 +694,12 @@ async fn test_invite_codes() {

    // User 4 can now redeem the invite code and becomes a contact of user 1.
    let user4_invite = db
-        .create_invite_from_code(&invite_code, "user4@example.com", Some("user-4-device-id"))
+        .create_invite_from_code(
+            &invite_code,
+            "user4@example.com",
+            Some("user-4-device-id"),
+            true,
+        )
        .await
        .unwrap();
    let user4 = db
@@ -729,9 +754,14 @@ async fn test_invite_codes() {
    );

    // An existing user cannot redeem invite codes.
-    db.create_invite_from_code(&invite_code, "user2@example.com", Some("user-2-device-id"))
-        .await
-        .unwrap_err();
+    db.create_invite_from_code(
+        &invite_code,
+        "user2@example.com",
+        Some("user-2-device-id"),
+        true,
+    )
+    .await
+    .unwrap_err();
    let (_, invite_count) = db.get_invite_code_for_user(user1).await.unwrap().unwrap();
    assert_eq!(invite_count, 1);

@@ -753,7 +783,7 @@ async fn test_invite_codes() {
    db.set_invite_count_for_user(user5, 5).await.unwrap();
    let (user5_invite_code, _) = db.get_invite_code_for_user(user5).await.unwrap().unwrap();
    let user5_invite_to_user1 = db
-        .create_invite_from_code(&user5_invite_code, "user1@different.com", None)
+        .create_invite_from_code(&user5_invite_code, "user1@different.com", None, true)
        .await
        .unwrap();
    let user1_2 = db
--- a/crates/collab/src/db/worktree.rs
+++ b/crates/collab/src/db/worktree.rs
@@ -11,8 +11,10 @@ pub struct Model {
    pub abs_path: String,
    pub root_name: String,
    pub visible: bool,
+    /// The last scan for which we've observed entries. It may be in progress.
    pub scan_id: i64,
-    pub is_complete: bool,
+    /// The last scan that fully completed.
+    pub completed_scan_id: i64,
 }

 #[derive(Copy, Clone, Debug, EnumIter, DeriveRelation)]
--- a/crates/collab/src/db/worktree_entry.rs
+++ b/crates/collab/src/db/worktree_entry.rs
@@ -17,6 +17,8 @@ pub struct Model {
    pub mtime_nanos: i32,
    pub is_symlink: bool,
    pub is_ignored: bool,
+    pub is_deleted: bool,
+    pub scan_id: i64,
 }

 #[derive(Copy, Clone, Debug, EnumIter, DeriveRelation)]
--- a/crates/collab/src/executor.rs
+++ b/crates/collab/src/executor.rs
@@ -33,4 +33,12 @@ impl Executor {
            }
        }
    }
+
+    pub fn record_backtrace(&self) {
+        match self {
+            Executor::Production => {}
+            #[cfg(test)]
+            Executor::Deterministic(background) => background.record_backtrace(),
+        }
+    }
 }
--- a/crates/collab/src/lib.rs
+++ b/crates/collab/src/lib.rs
@@ -3,10 +3,11 @@ pub mod auth;
 pub mod db;
 pub mod env;
 pub mod executor;
-#[cfg(test)]
-mod integration_tests;
 pub mod rpc;

+#[cfg(test)]
+mod tests;
+
 use axum::{http::StatusCode, response::IntoResponse};
 use db::Database;
 use serde::Deserialize;
@@ -97,6 +98,7 @@ pub struct Config {
    pub live_kit_secret: Option<String>,
    pub rust_log: Option<String>,
    pub log_json: Option<bool>,
+    pub zed_environment: String,
 }

 #[derive(Default, Deserialize)]
--- a/crates/collab/src/main.rs
+++ b/crates/collab/src/main.rs
@@ -7,6 +7,7 @@ use std::{
    net::{SocketAddr, TcpListener},
    path::Path,
 };
+use tokio::signal::unix::SignalKind;
 use tracing_log::LogTracer;
 use tracing_subscriber::{filter::EnvFilter, fmt::format::JsonFields, Layer};
 use util::ResultExt;
@@ -56,7 +57,11 @@ async fn main() -> Result<()> {
            let listener = TcpListener::bind(&format!("0.0.0.0:{}", state.config.http_port))
                .expect("failed to bind TCP listener");

-            let rpc_server = collab::rpc::Server::new(state.clone(), Executor::Production);
+            let epoch = state
+                .db
+                .create_server(&state.config.zed_environment)
+                .await?;
+            let rpc_server = collab::rpc::Server::new(epoch, state.clone(), Executor::Production);
            rpc_server.start().await?;

            let app = collab::api::routes(rpc_server.clone(), state.clone())
@@ -66,9 +71,15 @@ async fn main() -> Result<()> {
            axum::Server::from_tcp(listener)?
                .serve(app.into_make_service_with_connect_info::<SocketAddr>())
                .with_graceful_shutdown(async move {
-                    tokio::signal::ctrl_c()
-                        .await
+                    let mut sigterm = tokio::signal::unix::signal(SignalKind::terminate())
                        .expect("failed to listen for interrupt signal");
+                    let mut sigint = tokio::signal::unix::signal(SignalKind::interrupt())
+                        .expect("failed to listen for interrupt signal");
+                    let sigterm = sigterm.recv();
+                    let sigint = sigint.recv();
+                    futures::pin_mut!(sigterm, sigint);
+                    futures::future::select(sigterm, sigint).await;
+                    tracing::info!("Received interrupt signal");
                    rpc_server.teardown();
                })
                .await?;
--- a/crates/collab/src/rpc.rs
+++ b/crates/collab/src/rpc.rs
@@ -2,7 +2,7 @@ mod connection_pool;

 use crate::{
    auth,
-    db::{self, Database, ProjectId, RoomId, User, UserId},
+    db::{self, Database, ProjectId, RoomId, ServerId, User, UserId},
    executor::Executor,
    AppState, Result,
 };
@@ -57,7 +57,7 @@ use tokio::sync::watch;
 use tower::ServiceBuilder;
 use tracing::{info_span, instrument, Instrument};

-pub const RECONNECT_TIMEOUT: Duration = Duration::from_secs(5);
+pub const RECONNECT_TIMEOUT: Duration = Duration::from_secs(30);
 pub const CLEANUP_TIMEOUT: Duration = Duration::from_secs(10);

 lazy_static! {
@@ -95,6 +95,7 @@ struct Session {
    peer: Arc<Peer>,
    connection_pool: Arc<parking_lot::Mutex<ConnectionPool>>,
    live_kit_client: Option<Arc<dyn live_kit_server::api::Client>>,
+    executor: Executor,
 }

 impl Session {
@@ -138,6 +139,7 @@ impl Deref for DbHandle {
 }

 pub struct Server {
+    id: parking_lot::Mutex<ServerId>,
    peer: Arc<Peer>,
    pub(crate) connection_pool: Arc<parking_lot::Mutex<ConnectionPool>>,
    app_state: Arc<AppState>,
@@ -168,9 +170,10 @@ where
 }

 impl Server {
-    pub fn new(app_state: Arc<AppState>, executor: Executor) -> Arc<Self> {
+    pub fn new(id: ServerId, app_state: Arc<AppState>, executor: Executor) -> Arc<Self> {
        let mut server = Self {
-            peer: Peer::new(),
+            id: parking_lot::Mutex::new(id),
+            peer: Peer::new(id.0 as u32),
            app_state,
            executor,
            connection_pool: Default::default(),
@@ -182,6 +185,7 @@ impl Server {
            .add_request_handler(ping)
            .add_request_handler(create_room)
            .add_request_handler(join_room)
+            .add_request_handler(rejoin_room)
            .add_message_handler(leave_room)
            .add_request_handler(call)
            .add_request_handler(cancel_call)
@@ -213,6 +217,7 @@ impl Server {
            .add_request_handler(forward_project_request::<proto::PrepareRename>)
            .add_request_handler(forward_project_request::<proto::PerformRename>)
            .add_request_handler(forward_project_request::<proto::ReloadBuffers>)
+            .add_request_handler(forward_project_request::<proto::SynchronizeBuffers>)
            .add_request_handler(forward_project_request::<proto::FormatBuffers>)
            .add_request_handler(forward_project_request::<proto::CreateProjectEntry>)
            .add_request_handler(forward_project_request::<proto::RenameProjectEntry>)
@@ -239,97 +244,139 @@ impl Server {
    }

    pub async fn start(&self) -> Result<()> {
-        self.app_state.db.delete_stale_projects().await?;
-        let db = self.app_state.db.clone();
+        let server_id = *self.id.lock();
+        let app_state = self.app_state.clone();
        let peer = self.peer.clone();
        let timeout = self.executor.sleep(CLEANUP_TIMEOUT);
        let pool = self.connection_pool.clone();
        let live_kit_client = self.app_state.live_kit_client.clone();
-        self.executor.spawn_detached(async move {
-            timeout.await;
-            if let Some(room_ids) = db.stale_room_ids().await.trace_err() {
-                for room_id in room_ids {
-                    let mut contacts_to_update = HashSet::default();
-                    let mut canceled_calls_to_user_ids = Vec::new();
-                    let mut live_kit_room = String::new();
-                    let mut delete_live_kit_room = false;

-                    if let Ok(mut refreshed_room) = db.refresh_room(room_id).await {
-                        room_updated(&refreshed_room.room, &peer);
-                        contacts_to_update
-                            .extend(refreshed_room.stale_participant_user_ids.iter().copied());
-                        contacts_to_update
-                            .extend(refreshed_room.canceled_calls_to_user_ids.iter().copied());
-                        canceled_calls_to_user_ids =
-                            mem::take(&mut refreshed_room.canceled_calls_to_user_ids);
-                        live_kit_room = mem::take(&mut refreshed_room.room.live_kit_room);
-                        delete_live_kit_room = refreshed_room.room.participants.is_empty();
-                    }
+        let span = info_span!("start server");
+        self.executor.spawn_detached(
+            async move {
+                tracing::info!("waiting for cleanup timeout");
+                timeout.await;
+                tracing::info!("cleanup timeout expired, retrieving stale rooms");
+                if let Some(room_ids) = app_state
+                    .db
+                    .stale_room_ids(&app_state.config.zed_environment, server_id)
+                    .await
+                    .trace_err()
+                {
+                    tracing::info!(stale_room_count = room_ids.len(), "retrieved stale rooms");
+                    for room_id in room_ids {
+                        let mut contacts_to_update = HashSet::default();
+                        let mut canceled_calls_to_user_ids = Vec::new();
+                        let mut live_kit_room = String::new();
+                        let mut delete_live_kit_room = false;

-                    {
-                        let pool = pool.lock();
-                        for canceled_user_id in canceled_calls_to_user_ids {
-                            for connection_id in pool.user_connection_ids(canceled_user_id) {
-                                peer.send(
-                                    connection_id,
-                                    proto::CallCanceled {
-                                        room_id: room_id.to_proto(),
-                                    },
-                                )
-                                .trace_err();
+                        if let Some(mut refreshed_room) = app_state
+                            .db
+                            .refresh_room(room_id, server_id)
+                            .await
+                            .trace_err()
+                        {
+                            tracing::info!(
+                                room_id = room_id.0,
+                                new_participant_count = refreshed_room.room.participants.len(),
+                                "refreshed room"
+                            );
+                            room_updated(&refreshed_room.room, &peer);
+                            contacts_to_update
+                                .extend(refreshed_room.stale_participant_user_ids.iter().copied());
+                            contacts_to_update
+                                .extend(refreshed_room.canceled_calls_to_user_ids.iter().copied());
+                            canceled_calls_to_user_ids =
+                                mem::take(&mut refreshed_room.canceled_calls_to_user_ids);
+                            live_kit_room = mem::take(&mut refreshed_room.room.live_kit_room);
+                            delete_live_kit_room = refreshed_room.room.participants.is_empty();
+                        }
+
+                        {
+                            let pool = pool.lock();
+                            for canceled_user_id in canceled_calls_to_user_ids {
+                                for connection_id in pool.user_connection_ids(canceled_user_id) {
+                                    peer.send(
+                                        connection_id,
+                                        proto::CallCanceled {
+                                            room_id: room_id.to_proto(),
+                                        },
+                                    )
+                                    .trace_err();
+                                }
                            }
                        }
-                    }

-                    for user_id in contacts_to_update {
-                        let busy = db.is_user_busy(user_id).await.trace_err();
-                        let contacts = db.get_contacts(user_id).await.trace_err();
-                        if let Some((busy, contacts)) = busy.zip(contacts) {
-                            let pool = pool.lock();
-                            let updated_contact = contact_for_user(user_id, false, busy, &pool);
-                            for contact in contacts {
-                                if let db::Contact::Accepted {
-                                    user_id: contact_user_id,
-                                    ..
-                                } = contact
-                                {
-                                    for contact_conn_id in pool.user_connection_ids(contact_user_id)
+                        for user_id in contacts_to_update {
+                            let busy = app_state.db.is_user_busy(user_id).await.trace_err();
+                            let contacts = app_state.db.get_contacts(user_id).await.trace_err();
+                            if let Some((busy, contacts)) = busy.zip(contacts) {
+                                let pool = pool.lock();
+                                let updated_contact = contact_for_user(user_id, false, busy, &pool);
+                                for contact in contacts {
+                                    if let db::Contact::Accepted {
+                                        user_id: contact_user_id,
+                                        ..
+                                    } = contact
                                    {
-                                        peer.send(
-                                            contact_conn_id,
-                                            proto::UpdateContacts {
-                                                contacts: vec![updated_contact.clone()],
-                                                remove_contacts: Default::default(),
-                                                incoming_requests: Default::default(),
-                                                remove_incoming_requests: Default::default(),
-                                                outgoing_requests: Default::default(),
-                                                remove_outgoing_requests: Default::default(),
-                                            },
-                                        )
-                                        .trace_err();
+                                        for contact_conn_id in
+                                            pool.user_connection_ids(contact_user_id)
+                                        {
+                                            peer.send(
+                                                contact_conn_id,
+                                                proto::UpdateContacts {
+                                                    contacts: vec![updated_contact.clone()],
+                                                    remove_contacts: Default::default(),
+                                                    incoming_requests: Default::default(),
+                                                    remove_incoming_requests: Default::default(),
+                                                    outgoing_requests: Default::default(),
+                                                    remove_outgoing_requests: Default::default(),
+                                                },
+                                            )
+                                            .trace_err();
+                                        }
                                    }
                                }
                            }
                        }
-                    }

-                    if let Some(live_kit) = live_kit_client.as_ref() {
-                        if delete_live_kit_room {
-                            live_kit.delete_room(live_kit_room).await.trace_err();
+                        if let Some(live_kit) = live_kit_client.as_ref() {
+                            if delete_live_kit_room {
+                                live_kit.delete_room(live_kit_room).await.trace_err();
+                            }
                        }
                    }
                }
+
+                app_state
+                    .db
+                    .delete_stale_servers(&app_state.config.zed_environment, server_id)
+                    .await
+                    .trace_err();
            }
-        });
+            .instrument(span),
+        );
        Ok(())
    }

    pub fn teardown(&self) {
-        self.peer.reset();
+        self.peer.teardown();
        self.connection_pool.lock().reset();
        let _ = self.teardown.send(());
    }

+    #[cfg(test)]
+    pub fn reset(&self, id: ServerId) {
+        self.teardown();
+        *self.id.lock() = id;
+        self.peer.reset(id.0 as u32);
+    }
+
+    #[cfg(test)]
+    pub fn id(&self) -> ServerId {
+        *self.id.lock()
+    }
+
    fn add_handler<F, Fut, M>(&mut self, handler: F) -> &mut Self
    where
        F: 'static + Send + Sync + Fn(TypedEnvelope<M>, Session) -> Fut,
@@ -438,7 +485,7 @@ impl Server {
                });

            tracing::info!(%user_id, %login, %connection_id, %address, "connection opened");
-            this.peer.send(connection_id, proto::Hello { peer_id: connection_id.0 })?;
+            this.peer.send(connection_id, proto::Hello { peer_id: Some(connection_id.into()) })?;
            tracing::info!(%user_id, %login, %connection_id, %address, "sent hello message");

            if let Some(send_connection_id) = send_connection_id.take() {
@@ -478,7 +525,8 @@ impl Server {
                db: Arc::new(tokio::sync::Mutex::new(DbHandle(this.app_state.db.clone()))),
                peer: this.peer.clone(),
                connection_pool: this.connection_pool.clone(),
-                live_kit_client: this.app_state.live_kit_client.clone()
+                live_kit_client: this.app_state.live_kit_client.clone(),
+                executor: executor.clone(),
            };
            update_user_contacts(user_id, &session).await?;

@@ -535,7 +583,7 @@ impl Server {

            drop(foreground_message_handlers);
            tracing::info!(%user_id, %login, %connection_id, %address, "signing out");
-            if let Err(error) = sign_out(session, teardown, executor).await {
+            if let Err(error) = connection_lost(session, teardown, executor).await {
                tracing::error!(%user_id, %login, %connection_id, %address, ?error, "error signing out");
            }

@@ -627,15 +675,17 @@ impl<'a> Drop for ConnectionPoolGuard<'a> {
 }

 fn broadcast<F>(
-    sender_id: ConnectionId,
+    sender_id: Option<ConnectionId>,
    receiver_ids: impl IntoIterator<Item = ConnectionId>,
    mut f: F,
 ) where
    F: FnMut(ConnectionId) -> anyhow::Result<()>,
 {
    for receiver_id in receiver_ids {
-        if receiver_id != sender_id {
-            f(receiver_id).trace_err();
+        if Some(receiver_id) != sender_id {
+            if let Err(error) = f(receiver_id) {
+                tracing::error!("failed to send to {:?} {}", receiver_id, error);
+            }
        }
    }
 }
@@ -736,7 +786,7 @@ pub async fn handle_metrics(Extension(server): Extension<Arc<Server>>) -> Result
 }

 #[instrument(err, skip(executor))]
-async fn sign_out(
+async fn connection_lost(
    session: Session,
    mut teardown: watch::Receiver<()>,
    executor: Executor,
@@ -747,17 +797,12 @@ async fn sign_out(
        .await
        .remove_connection(session.connection_id)?;

-    if let Some(mut left_projects) = session
+    session
        .db()
        .await
        .connection_lost(session.connection_id)
        .await
-        .trace_err()
-    {
-        for left_project in mem::take(&mut *left_projects) {
-            project_left(&left_project, &session);
-        }
-    }
+        .trace_err();

    futures::select_biased! {
        _ = executor.sleep(RECONNECT_TIMEOUT).fuse() => {
@@ -769,7 +814,7 @@ async fn sign_out(
                .is_user_online(session.user_id)
            {
                let db = session.db().await;
-                if let Some(room) = db.decline_call(None, session.user_id).await.trace_err() {
+                if let Some(room) = db.decline_call(None, session.user_id).await.trace_err().flatten() {
                    room_updated(&room, &session.peer);
                }
            }
@@ -799,7 +844,7 @@ async fn create_room(
            .trace_err()
        {
            if let Some(token) = live_kit
-                .room_token(&live_kit_room, &session.connection_id.to_string())
+                .room_token(&live_kit_room, &session.user_id.to_string())
                .trace_err()
            {
                Some(proto::LiveKitConnectionInfo {
@@ -867,7 +912,7 @@ async fn join_room(

    let live_kit_connection_info = if let Some(live_kit) = session.live_kit_client.as_ref() {
        if let Some(token) = live_kit
-            .room_token(&room.live_kit_room, &session.connection_id.to_string())
+            .room_token(&room.live_kit_room, &session.user_id.to_string())
            .trace_err()
        {
            Some(proto::LiveKitConnectionInfo {
@@ -890,6 +935,164 @@ async fn join_room(
    Ok(())
 }

+async fn rejoin_room(
+    request: proto::RejoinRoom,
+    response: Response<proto::RejoinRoom>,
+    session: Session,
+) -> Result<()> {
+    {
+        let mut rejoined_room = session
+            .db()
+            .await
+            .rejoin_room(request, session.user_id, session.connection_id)
+            .await?;
+
+        response.send(proto::RejoinRoomResponse {
+            room: Some(rejoined_room.room.clone()),
+            reshared_projects: rejoined_room
+                .reshared_projects
+                .iter()
+                .map(|project| proto::ResharedProject {
+                    id: project.id.to_proto(),
+                    collaborators: project
+                        .collaborators
+                        .iter()
+                        .map(|collaborator| collaborator.to_proto())
+                        .collect(),
+                })
+                .collect(),
+            rejoined_projects: rejoined_room
+                .rejoined_projects
+                .iter()
+                .map(|rejoined_project| proto::RejoinedProject {
+                    id: rejoined_project.id.to_proto(),
+                    worktrees: rejoined_project
+                        .worktrees
+                        .iter()
+                        .map(|worktree| proto::WorktreeMetadata {
+                            id: worktree.id,
+                            root_name: worktree.root_name.clone(),
+                            visible: worktree.visible,
+                            abs_path: worktree.abs_path.clone(),
+                        })
+                        .collect(),
+                    collaborators: rejoined_project
+                        .collaborators
+                        .iter()
+                        .map(|collaborator| collaborator.to_proto())
+                        .collect(),
+                    language_servers: rejoined_project.language_servers.clone(),
+                })
+                .collect(),
+        })?;
+        room_updated(&rejoined_room.room, &session.peer);
+
+        for project in &rejoined_room.reshared_projects {
+            for collaborator in &project.collaborators {
+                session
+                    .peer
+                    .send(
+                        collaborator.connection_id,
+                        proto::UpdateProjectCollaborator {
+                            project_id: project.id.to_proto(),
+                            old_peer_id: Some(project.old_connection_id.into()),
+                            new_peer_id: Some(session.connection_id.into()),
+                        },
+                    )
+                    .trace_err();
+            }
+
+            broadcast(
+                Some(session.connection_id),
+                project
+                    .collaborators
+                    .iter()
+                    .map(|collaborator| collaborator.connection_id),
+                |connection_id| {
+                    session.peer.forward_send(
+                        session.connection_id,
+                        connection_id,
+                        proto::UpdateProject {
+                            project_id: project.id.to_proto(),
+                            worktrees: project.worktrees.clone(),
+                        },
+                    )
+                },
+            );
+        }
+
+        for project in &rejoined_room.rejoined_projects {
+            for collaborator in &project.collaborators {
+                session
+                    .peer
+                    .send(
+                        collaborator.connection_id,
+                        proto::UpdateProjectCollaborator {
+                            project_id: project.id.to_proto(),
+                            old_peer_id: Some(project.old_connection_id.into()),
+                            new_peer_id: Some(session.connection_id.into()),
+                        },
+                    )
+                    .trace_err();
+            }
+        }
+
+        for project in &mut rejoined_room.rejoined_projects {
+            for worktree in mem::take(&mut project.worktrees) {
+                #[cfg(any(test, feature = "test-support"))]
+                const MAX_CHUNK_SIZE: usize = 2;
+                #[cfg(not(any(test, feature = "test-support")))]
+                const MAX_CHUNK_SIZE: usize = 256;
+
+                // Stream this worktree's entries.
+                let message = proto::UpdateWorktree {
+                    project_id: project.id.to_proto(),
+                    worktree_id: worktree.id,
+                    abs_path: worktree.abs_path.clone(),
+                    root_name: worktree.root_name,
+                    updated_entries: worktree.updated_entries,
+                    removed_entries: worktree.removed_entries,
+                    scan_id: worktree.scan_id,
+                    is_last_update: worktree.completed_scan_id == worktree.scan_id,
+                };
+                for update in proto::split_worktree_update(message, MAX_CHUNK_SIZE) {
+                    session.peer.send(session.connection_id, update.clone())?;
+                }
+
+                // Stream this worktree's diagnostics.
+                for summary in worktree.diagnostic_summaries {
+                    session.peer.send(
+                        session.connection_id,
+                        proto::UpdateDiagnosticSummary {
+                            project_id: project.id.to_proto(),
+                            worktree_id: worktree.id,
+                            summary: Some(summary),
+                        },
+                    )?;
+                }
+            }
+
+            for language_server in &project.language_servers {
+                session.peer.send(
+                    session.connection_id,
+                    proto::UpdateLanguageServer {
+                        project_id: project.id.to_proto(),
+                        language_server_id: language_server.id,
+                        variant: Some(
+                            proto::update_language_server::Variant::DiskBasedDiagnosticsUpdated(
+                                proto::LspDiskBasedDiagnosticsUpdated {},
+                            ),
+                        ),
+                    },
+                )?;
+            }
+        }
+    }
+
+    update_user_contacts(session.user_id, &session).await?;
+    Ok(())
+}
+
 async fn leave_room(_message: proto::LeaveRoom, session: Session) -> Result<()> {
    leave_room_for_session(&session).await
 }
@@ -973,7 +1176,7 @@ async fn cancel_call(
        let room = session
            .db()
            .await
-            .cancel_call(Some(room_id), session.connection_id, called_user_id)
+            .cancel_call(room_id, session.connection_id, called_user_id)
            .await?;
        room_updated(&room, &session.peer);
    }
@@ -1006,7 +1209,8 @@ async fn decline_call(message: proto::DeclineCall, session: Session) -> Result<(
            .db()
            .await
            .decline_call(Some(room_id), session.user_id)
-            .await?;
+            .await?
+            .ok_or_else(|| anyhow!("failed to decline call"))?;
        room_updated(&room, &session.peer);
    }

@@ -1080,7 +1284,7 @@ async fn unshare_project(message: proto::UnshareProject, session: Session) -> Re
        .await?;

    broadcast(
-        session.connection_id,
+        Some(session.connection_id),
        guest_connection_ids.iter().copied(),
        |conn_id| session.peer.send(conn_id, message.clone()),
    );
@@ -1108,13 +1312,10 @@ async fn join_project(
    let collaborators = project
        .collaborators
        .iter()
-        .filter(|collaborator| collaborator.connection_id != session.connection_id.0 as i32)
-        .map(|collaborator| proto::Collaborator {
-            peer_id: collaborator.connection_id as u32,
-            replica_id: collaborator.replica_id.0 as u32,
-            user_id: collaborator.user_id.to_proto(),
-        })
+        .filter(|collaborator| collaborator.connection_id != session.connection_id)
+        .map(|collaborator| collaborator.to_proto())
        .collect::<Vec<_>>();
+
    let worktrees = project
        .worktrees
        .iter()
@@ -1130,11 +1331,11 @@ async fn join_project(
        session
            .peer
            .send(
-                ConnectionId(collaborator.peer_id),
+                collaborator.peer_id.unwrap().into(),
                proto::AddProjectCollaborator {
                    project_id: project_id.to_proto(),
                    collaborator: Some(proto::Collaborator {
-                        peer_id: session.connection_id.0,
+                        peer_id: Some(session.connection_id.into()),
                        replica_id: replica_id.0 as u32,
                        user_id: guest_user_id.to_proto(),
                    }),
@@ -1166,7 +1367,7 @@ async fn join_project(
            updated_entries: worktree.entries,
            removed_entries: Default::default(),
            scan_id: worktree.scan_id,
-            is_last_update: worktree.is_complete,
+            is_last_update: worktree.scan_id == worktree.completed_scan_id,
        };
        for update in proto::split_worktree_update(message, MAX_CHUNK_SIZE) {
            session.peer.send(session.connection_id, update.clone())?;
@@ -1207,7 +1408,7 @@ async fn leave_project(request: proto::LeaveProject, session: Session) -> Result
    let sender_id = session.connection_id;
    let project_id = ProjectId::from_proto(request.project_id);

-    let project = session
+    let (room, project) = &*session
        .db()
        .await
        .leave_project(project_id, sender_id)
@@ -1218,7 +1419,9 @@ async fn leave_project(request: proto::LeaveProject, session: Session) -> Result
        host_connection_id = %project.host_connection_id,
        "leave project"
    );
+
    project_left(&project, &session);
+    room_updated(&room, &session.peer);

    Ok(())
 }
@@ -1235,7 +1438,7 @@ async fn update_project(
        .update_project(project_id, session.connection_id, &request.worktrees)
        .await?;
    broadcast(
-        session.connection_id,
+        Some(session.connection_id),
        guest_connection_ids.iter().copied(),
        |connection_id| {
            session
@@ -1261,7 +1464,7 @@ async fn update_worktree(
        .await?;

    broadcast(
-        session.connection_id,
+        Some(session.connection_id),
        guest_connection_ids.iter().copied(),
        |connection_id| {
            session
@@ -1284,7 +1487,7 @@ async fn update_diagnostic_summary(
        .await?;

    broadcast(
-        session.connection_id,
+        Some(session.connection_id),
        guest_connection_ids.iter().copied(),
        |connection_id| {
            session
@@ -1307,7 +1510,7 @@ async fn start_language_server(
        .await?;

    broadcast(
-        session.connection_id,
+        Some(session.connection_id),
        guest_connection_ids.iter().copied(),
        |connection_id| {
            session
@@ -1322,6 +1525,7 @@ async fn update_language_server(
    request: proto::UpdateLanguageServer,
    session: Session,
 ) -> Result<()> {
+    session.executor.record_backtrace();
    let project_id = ProjectId::from_proto(request.project_id);
    let project_connection_ids = session
        .db()
@@ -1329,7 +1533,7 @@ async fn update_language_server(
        .project_connection_ids(project_id, session.connection_id)
        .await?;
    broadcast(
-        session.connection_id,
+        Some(session.connection_id),
        project_connection_ids.iter().copied(),
        |connection_id| {
            session
@@ -1348,6 +1552,7 @@ async fn forward_project_request<T>(
 where
    T: EntityMessage + RequestMessage,
 {
+    session.executor.record_backtrace();
    let project_id = ProjectId::from_proto(request.remote_entity_id());
    let host_connection_id = {
        let collaborators = session
@@ -1355,13 +1560,11 @@ where
            .await
            .project_collaborators(project_id, session.connection_id)
            .await?;
-        ConnectionId(
-            collaborators
-                .iter()
-                .find(|collaborator| collaborator.is_host)
-                .ok_or_else(|| anyhow!("host not found"))?
-                .connection_id as u32,
-        )
+        collaborators
+            .iter()
+            .find(|collaborator| collaborator.is_host)
+            .ok_or_else(|| anyhow!("host not found"))?
+            .connection_id
    };

    let payload = session
@@ -1385,11 +1588,11 @@ async fn save_buffer(
            .await
            .project_collaborators(project_id, session.connection_id)
            .await?;
-        let host = collaborators
+        collaborators
            .iter()
            .find(|collaborator| collaborator.is_host)
-            .ok_or_else(|| anyhow!("host not found"))?;
-        ConnectionId(host.connection_id as u32)
+            .ok_or_else(|| anyhow!("host not found"))?
+            .connection_id
    };
    let response_payload = session
        .peer
@@ -1401,16 +1604,19 @@ async fn save_buffer(
        .await
        .project_collaborators(project_id, session.connection_id)
        .await?;
-    collaborators
-        .retain(|collaborator| collaborator.connection_id != session.connection_id.0 as i32);
+    collaborators.retain(|collaborator| collaborator.connection_id != session.connection_id);
    let project_connection_ids = collaborators
        .iter()
-        .map(|collaborator| ConnectionId(collaborator.connection_id as u32));
-    broadcast(host_connection_id, project_connection_ids, |conn_id| {
-        session
-            .peer
-            .forward_send(host_connection_id, conn_id, response_payload.clone())
-    });
+        .map(|collaborator| collaborator.connection_id);
+    broadcast(
+        Some(host_connection_id),
+        project_connection_ids,
+        |conn_id| {
+            session
+                .peer
+                .forward_send(host_connection_id, conn_id, response_payload.clone())
+        },
+    );
    response.send(response_payload)?;
    Ok(())
 }
@@ -1419,11 +1625,11 @@ async fn create_buffer_for_peer(
    request: proto::CreateBufferForPeer,
    session: Session,
 ) -> Result<()> {
-    session.peer.forward_send(
-        session.connection_id,
-        ConnectionId(request.peer_id),
-        request,
-    )?;
+    session.executor.record_backtrace();
+    let peer_id = request.peer_id.ok_or_else(|| anyhow!("invalid peer id"))?;
+    session
+        .peer
+        .forward_send(session.connection_id, peer_id.into(), request)?;
    Ok(())
 }

@@ -1432,6 +1638,7 @@ async fn update_buffer(
    response: Response<proto::UpdateBuffer>,
    session: Session,
 ) -> Result<()> {
+    session.executor.record_backtrace();
    let project_id = ProjectId::from_proto(request.project_id);
    let project_connection_ids = session
        .db()
@@ -1439,8 +1646,10 @@ async fn update_buffer(
        .project_connection_ids(project_id, session.connection_id)
        .await?;

+    session.executor.record_backtrace();
+
    broadcast(
-        session.connection_id,
+        Some(session.connection_id),
        project_connection_ids.iter().copied(),
        |connection_id| {
            session
@@ -1461,7 +1670,7 @@ async fn update_buffer_file(request: proto::UpdateBufferFile, session: Session)
        .await?;

    broadcast(
-        session.connection_id,
+        Some(session.connection_id),
        project_connection_ids.iter().copied(),
        |connection_id| {
            session
@@ -1480,7 +1689,7 @@ async fn buffer_reloaded(request: proto::BufferReloaded, session: Session) -> Re
        .project_connection_ids(project_id, session.connection_id)
        .await?;
    broadcast(
-        session.connection_id,
+        Some(session.connection_id),
        project_connection_ids.iter().copied(),
        |connection_id| {
            session
@@ -1499,7 +1708,7 @@ async fn buffer_saved(request: proto::BufferSaved, session: Session) -> Result<(
        .project_connection_ids(project_id, session.connection_id)
        .await?;
    broadcast(
-        session.connection_id,
+        Some(session.connection_id),
        project_connection_ids.iter().copied(),
        |connection_id| {
            session
@@ -1516,8 +1725,12 @@ async fn follow(
    session: Session,
 ) -> Result<()> {
    let project_id = ProjectId::from_proto(request.project_id);
-    let leader_id = ConnectionId(request.leader_id);
+    let leader_id = request
+        .leader_id
+        .ok_or_else(|| anyhow!("invalid leader id"))?
+        .into();
    let follower_id = session.connection_id;
+
    {
        let project_connection_ids = session
            .db()
@@ -1536,25 +1749,48 @@ async fn follow(
        .await?;
    response_payload
        .views
-        .retain(|view| view.leader_id != Some(follower_id.0));
+        .retain(|view| view.leader_id != Some(follower_id.into()));
    response.send(response_payload)?;
+
+    let room = session
+        .db()
+        .await
+        .follow(project_id, leader_id, follower_id)
+        .await?;
+    room_updated(&room, &session.peer);
+
    Ok(())
 }

 async fn unfollow(request: proto::Unfollow, session: Session) -> Result<()> {
    let project_id = ProjectId::from_proto(request.project_id);
-    let leader_id = ConnectionId(request.leader_id);
-    let project_connection_ids = session
+    let leader_id = request
+        .leader_id
+        .ok_or_else(|| anyhow!("invalid leader id"))?
+        .into();
+    let follower_id = session.connection_id;
+
+    if !session
        .db()
        .await
        .project_connection_ids(project_id, session.connection_id)
-        .await?;
-    if !project_connection_ids.contains(&leader_id) {
+        .await?
+        .contains(&leader_id)
+    {
        Err(anyhow!("no such peer"))?;
    }
+
    session
        .peer
        .forward_send(session.connection_id, leader_id, request)?;
+
+    let room = session
+        .db()
+        .await
+        .unfollow(project_id, leader_id, follower_id)
+        .await?;
+    room_updated(&room, &session.peer);
+
    Ok(())
 }

@@ -1572,12 +1808,16 @@ async fn update_followers(request: proto::UpdateFollowers, session: Session) ->
        proto::update_followers::Variant::UpdateView(payload) => payload.leader_id,
        proto::update_followers::Variant::UpdateActiveView(payload) => payload.leader_id,
    });
-    for follower_id in &request.follower_ids {
-        let follower_id = ConnectionId(*follower_id);
-        if project_connection_ids.contains(&follower_id) && Some(follower_id.0) != leader_id {
-            session
-                .peer
-                .forward_send(session.connection_id, follower_id, request.clone())?;
+    for follower_peer_id in request.follower_ids.iter().copied() {
+        let follower_connection_id = follower_peer_id.into();
+        if project_connection_ids.contains(&follower_connection_id)
+            && Some(follower_peer_id) != leader_id
+        {
+            session.peer.forward_send(
+                session.connection_id,
+                follower_connection_id,
+                request.clone(),
+            )?;
        }
    }
    Ok(())
@@ -1748,23 +1988,31 @@ async fn remove_contact(
    let requester_id = session.user_id;
    let responder_id = UserId::from_proto(request.user_id);
    let db = session.db().await;
-    db.remove_contact(requester_id, responder_id).await?;
+    let contact_accepted = db.remove_contact(requester_id, responder_id).await?;

    let pool = session.connection_pool().await;
    // Update outgoing contact requests of requester
    let mut update = proto::UpdateContacts::default();
-    update
-        .remove_outgoing_requests
-        .push(responder_id.to_proto());
+    if contact_accepted {
+        update.remove_contacts.push(responder_id.to_proto());
+    } else {
+        update
+            .remove_outgoing_requests
+            .push(responder_id.to_proto());
+    }
    for connection_id in pool.user_connection_ids(requester_id) {
        session.peer.send(connection_id, update.clone())?;
    }

    // Update incoming contact requests of responder
    let mut update = proto::UpdateContacts::default();
-    update
-        .remove_incoming_requests
-        .push(requester_id.to_proto());
+    if contact_accepted {
+        update.remove_contacts.push(requester_id.to_proto());
+    } else {
+        update
+            .remove_incoming_requests
+            .push(requester_id.to_proto());
+    }
    for connection_id in pool.user_connection_ids(responder_id) {
        session.peer.send(connection_id, update.clone())?;
    }
@@ -1781,7 +2029,7 @@ async fn update_diff_base(request: proto::UpdateDiffBase, session: Session) -> R
        .project_connection_ids(project_id, session.connection_id)
        .await?;
    broadcast(
-        session.connection_id,
+        Some(session.connection_id),
        project_connection_ids.iter().copied(),
        |connection_id| {
            session
@@ -1891,15 +2139,20 @@ fn contact_for_user(
 }

 fn room_updated(room: &proto::Room, peer: &Peer) {
-    for participant in &room.participants {
-        peer.send(
-            ConnectionId(participant.peer_id),
-            proto::RoomUpdated {
-                room: Some(room.clone()),
-            },
-        )
-        .trace_err();
-    }
+    broadcast(
+        None,
+        room.participants
+            .iter()
+            .filter_map(|participant| Some(participant.peer_id?.into())),
+        |peer_id| {
+            peer.send(
+                peer_id.into(),
+                proto::RoomUpdated {
+                    room: Some(room.clone()),
+                },
+            )
+        },
+    );
 }

 async fn update_user_contacts(user_id: UserId, session: &Session) -> Result<()> {
@@ -1943,8 +2196,7 @@ async fn leave_room_for_session(session: &Session) -> Result<()> {
    let canceled_calls_to_user_ids;
    let live_kit_room;
    let delete_live_kit_room;
-    {
-        let mut left_room = session.db().await.leave_room(session.connection_id).await?;
+    if let Some(mut left_room) = session.db().await.leave_room(session.connection_id).await? {
        contacts_to_update.insert(session.user_id);

        for project in left_room.left_projects.values() {
@@ -1956,6 +2208,8 @@ async fn leave_room_for_session(session: &Session) -> Result<()> {
        canceled_calls_to_user_ids = mem::take(&mut left_room.canceled_calls_to_user_ids);
        live_kit_room = mem::take(&mut left_room.room.live_kit_room);
        delete_live_kit_room = left_room.room.participants.is_empty();
+    } else {
+        return Ok(());
    }

    {
@@ -1982,7 +2236,7 @@ async fn leave_room_for_session(session: &Session) -> Result<()> {

    if let Some(live_kit) = session.live_kit_client.as_ref() {
        live_kit
-            .remove_participant(live_kit_room.clone(), session.connection_id.to_string())
+            .remove_participant(live_kit_room.clone(), session.user_id.to_string())
            .await
            .trace_err();

@@ -2013,22 +2267,12 @@ fn project_left(project: &db::LeftProject, session: &Session) {
                    *connection_id,
                    proto::RemoveProjectCollaborator {
                        project_id: project.id.to_proto(),
-                        peer_id: session.connection_id.0,
+                        peer_id: Some(session.connection_id.into()),
                    },
                )
                .trace_err();
        }
    }
-
-    session
-        .peer
-        .send(
-            session.connection_id,
-            proto::UnshareProject {
-                project_id: project.id.to_proto(),
-            },
-        )
-        .trace_err();
 }

 pub trait ResultExt {
--- a/crates/collab/src/tests.rs
+++ b/crates/collab/src/tests.rs
@@ -0,0 +1,462 @@
+use crate::{
+    db::{NewUserParams, TestDb, UserId},
+    executor::Executor,
+    rpc::{Server, CLEANUP_TIMEOUT},
+    AppState,
+};
+use anyhow::anyhow;
+use call::ActiveCall;
+use client::{
+    self, proto::PeerId, test::FakeHttpClient, Client, Connection, Credentials,
+    EstablishConnectionError, UserStore,
+};
+use collections::{HashMap, HashSet};
+use fs::FakeFs;
+use futures::{channel::oneshot, StreamExt as _};
+use gpui::{
+    executor::Deterministic, test::EmptyView, ModelHandle, Task, TestAppContext, ViewHandle,
+};
+use language::LanguageRegistry;
+use parking_lot::Mutex;
+use project::{Project, WorktreeId};
+use settings::Settings;
+use std::{
+    env,
+    ops::Deref,
+    path::{Path, PathBuf},
+    sync::{
+        atomic::{AtomicBool, AtomicUsize, Ordering::SeqCst},
+        Arc,
+    },
+};
+use theme::ThemeRegistry;
+use workspace::Workspace;
+
+mod integration_tests;
+mod randomized_integration_tests;
+
+struct TestServer {
+    app_state: Arc<AppState>,
+    server: Arc<Server>,
+    connection_killers: Arc<Mutex<HashMap<PeerId, Arc<AtomicBool>>>>,
+    forbid_connections: Arc<AtomicBool>,
+    _test_db: TestDb,
+    test_live_kit_server: Arc<live_kit_client::TestServer>,
+}
+
+impl TestServer {
+    async fn start(deterministic: &Arc<Deterministic>) -> Self {
+        static NEXT_LIVE_KIT_SERVER_ID: AtomicUsize = AtomicUsize::new(0);
+
+        let use_postgres = env::var("USE_POSTGRES").ok();
+        let use_postgres = use_postgres.as_deref();
+        let test_db = if use_postgres == Some("true") || use_postgres == Some("1") {
+            TestDb::postgres(deterministic.build_background())
+        } else {
+            TestDb::sqlite(deterministic.build_background())
+        };
+        let live_kit_server_id = NEXT_LIVE_KIT_SERVER_ID.fetch_add(1, SeqCst);
+        let live_kit_server = live_kit_client::TestServer::create(
+            format!("http://livekit.{}.test", live_kit_server_id),
+            format!("devkey-{}", live_kit_server_id),
+            format!("secret-{}", live_kit_server_id),
+            deterministic.build_background(),
+        )
+        .unwrap();
+        let app_state = Self::build_app_state(&test_db, &live_kit_server).await;
+        let epoch = app_state
+            .db
+            .create_server(&app_state.config.zed_environment)
+            .await
+            .unwrap();
+        let server = Server::new(
+            epoch,
+            app_state.clone(),
+            Executor::Deterministic(deterministic.build_background()),
+        );
+        server.start().await.unwrap();
+        // Advance clock to ensure the server's cleanup task is finished.
+        deterministic.advance_clock(CLEANUP_TIMEOUT);
+        Self {
+            app_state,
+            server,
+            connection_killers: Default::default(),
+            forbid_connections: Default::default(),
+            _test_db: test_db,
+            test_live_kit_server: live_kit_server,
+        }
+    }
+
+    async fn reset(&self) {
+        self.app_state.db.reset();
+        let epoch = self
+            .app_state
+            .db
+            .create_server(&self.app_state.config.zed_environment)
+            .await
+            .unwrap();
+        self.server.reset(epoch);
+    }
+
+    async fn create_client(&mut self, cx: &mut TestAppContext, name: &str) -> TestClient {
+        cx.update(|cx| {
+            cx.set_global(Settings::test(cx));
+        });
+
+        let http = FakeHttpClient::with_404_response();
+        let user_id = if let Ok(Some(user)) = self
+            .app_state
+            .db
+            .get_user_by_github_account(name, None)
+            .await
+        {
+            user.id
+        } else {
+            self.app_state
+                .db
+                .create_user(
+                    &format!("{name}@example.com"),
+                    false,
+                    NewUserParams {
+                        github_login: name.into(),
+                        github_user_id: 0,
+                        invite_count: 0,
+                    },
+                )
+                .await
+                .expect("creating user failed")
+                .user_id
+        };
+        let client_name = name.to_string();
+        let mut client = cx.read(|cx| Client::new(http.clone(), cx));
+        let server = self.server.clone();
+        let db = self.app_state.db.clone();
+        let connection_killers = self.connection_killers.clone();
+        let forbid_connections = self.forbid_connections.clone();
+
+        Arc::get_mut(&mut client)
+            .unwrap()
+            .set_id(user_id.0 as usize)
+            .override_authenticate(move |cx| {
+                cx.spawn(|_| async move {
+                    let access_token = "the-token".to_string();
+                    Ok(Credentials {
+                        user_id: user_id.0 as u64,
+                        access_token,
+                    })
+                })
+            })
+            .override_establish_connection(move |credentials, cx| {
+                assert_eq!(credentials.user_id, user_id.0 as u64);
+                assert_eq!(credentials.access_token, "the-token");
+
+                let server = server.clone();
+                let db = db.clone();
+                let connection_killers = connection_killers.clone();
+                let forbid_connections = forbid_connections.clone();
+                let client_name = client_name.clone();
+                cx.spawn(move |cx| async move {
+                    if forbid_connections.load(SeqCst) {
+                        Err(EstablishConnectionError::other(anyhow!(
+                            "server is forbidding connections"
+                        )))
+                    } else {
+                        let (client_conn, server_conn, killed) =
+                            Connection::in_memory(cx.background());
+                        let (connection_id_tx, connection_id_rx) = oneshot::channel();
+                        let user = db
+                            .get_user_by_id(user_id)
+                            .await
+                            .expect("retrieving user failed")
+                            .unwrap();
+                        cx.background()
+                            .spawn(server.handle_connection(
+                                server_conn,
+                                client_name,
+                                user,
+                                Some(connection_id_tx),
+                                Executor::Deterministic(cx.background()),
+                            ))
+                            .detach();
+                        let connection_id = connection_id_rx.await.unwrap();
+                        connection_killers
+                            .lock()
+                            .insert(connection_id.into(), killed);
+                        Ok(client_conn)
+                    }
+                })
+            });
+
+        let fs = FakeFs::new(cx.background());
+        let user_store = cx.add_model(|cx| UserStore::new(client.clone(), http, cx));
+        let app_state = Arc::new(workspace::AppState {
+            client: client.clone(),
+            user_store: user_store.clone(),
+            languages: Arc::new(LanguageRegistry::new(Task::ready(()))),
+            themes: ThemeRegistry::new((), cx.font_cache()),
+            fs: fs.clone(),
+            build_window_options: |_, _, _| Default::default(),
+            initialize_workspace: |_, _, _| unimplemented!(),
+            dock_default_item_factory: |_, _| unimplemented!(),
+        });
+
+        Project::init(&client);
+        cx.update(|cx| {
+            workspace::init(app_state.clone(), cx);
+            call::init(client.clone(), user_store.clone(), cx);
+        });
+
+        client
+            .authenticate_and_connect(false, &cx.to_async())
+            .await
+            .unwrap();
+
+        let client = TestClient {
+            client,
+            username: name.to_string(),
+            local_projects: Default::default(),
+            remote_projects: Default::default(),
+            next_root_dir_id: 0,
+            user_store,
+            fs,
+            language_registry: Arc::new(LanguageRegistry::test()),
+            buffers: Default::default(),
+        };
+        client.wait_for_current_user(cx).await;
+        client
+    }
+
+    fn disconnect_client(&self, peer_id: PeerId) {
+        self.connection_killers
+            .lock()
+            .remove(&peer_id)
+            .unwrap()
+            .store(true, SeqCst);
+    }
+
+    fn forbid_connections(&self) {
+        self.forbid_connections.store(true, SeqCst);
+    }
+
+    fn allow_connections(&self) {
+        self.forbid_connections.store(false, SeqCst);
+    }
+
+    async fn make_contacts(&self, clients: &mut [(&TestClient, &mut TestAppContext)]) {
+        for ix in 1..clients.len() {
+            let (left, right) = clients.split_at_mut(ix);
+            let (client_a, cx_a) = left.last_mut().unwrap();
+            for (client_b, cx_b) in right {
+                client_a
+                    .user_store
+                    .update(*cx_a, |store, cx| {
+                        store.request_contact(client_b.user_id().unwrap(), cx)
+                    })
+                    .await
+                    .unwrap();
+                cx_a.foreground().run_until_parked();
+                client_b
+                    .user_store
+                    .update(*cx_b, |store, cx| {
+                        store.respond_to_contact_request(client_a.user_id().unwrap(), true, cx)
+                    })
+                    .await
+                    .unwrap();
+            }
+        }
+    }
+
+    async fn create_room(&self, clients: &mut [(&TestClient, &mut TestAppContext)]) {
+        self.make_contacts(clients).await;
+
+        let (left, right) = clients.split_at_mut(1);
+        let (_client_a, cx_a) = &mut left[0];
+        let active_call_a = cx_a.read(ActiveCall::global);
+
+        for (client_b, cx_b) in right {
+            let user_id_b = client_b.current_user_id(*cx_b).to_proto();
+            active_call_a
+                .update(*cx_a, |call, cx| call.invite(user_id_b, None, cx))
+                .await
+                .unwrap();
+
+            cx_b.foreground().run_until_parked();
+            let active_call_b = cx_b.read(ActiveCall::global);
+            active_call_b
+                .update(*cx_b, |call, cx| call.accept_incoming(cx))
+                .await
+                .unwrap();
+        }
+    }
+
+    async fn build_app_state(
+        test_db: &TestDb,
+        fake_server: &live_kit_client::TestServer,
+    ) -> Arc<AppState> {
+        Arc::new(AppState {
+            db: test_db.db().clone(),
+            live_kit_client: Some(Arc::new(fake_server.create_api_client())),
+            config: Default::default(),
+        })
+    }
+}
+
+impl Deref for TestServer {
+    type Target = Server;
+
+    fn deref(&self) -> &Self::Target {
+        &self.server
+    }
+}
+
+impl Drop for TestServer {
+    fn drop(&mut self) {
+        self.server.teardown();
+        self.test_live_kit_server.teardown().unwrap();
+    }
+}
+
+struct TestClient {
+    client: Arc<Client>,
+    username: String,
+    local_projects: Vec<ModelHandle<Project>>,
+    remote_projects: Vec<ModelHandle<Project>>,
+    next_root_dir_id: usize,
+    pub user_store: ModelHandle<UserStore>,
+    language_registry: Arc<LanguageRegistry>,
+    fs: Arc<FakeFs>,
+    buffers: HashMap<ModelHandle<Project>, HashSet<ModelHandle<language::Buffer>>>,
+}
+
+impl Deref for TestClient {
+    type Target = Arc<Client>;
+
+    fn deref(&self) -> &Self::Target {
+        &self.client
+    }
+}
+
+struct ContactsSummary {
+    pub current: Vec<String>,
+    pub outgoing_requests: Vec<String>,
+    pub incoming_requests: Vec<String>,
+}
+
+impl TestClient {
+    pub fn current_user_id(&self, cx: &TestAppContext) -> UserId {
+        UserId::from_proto(
+            self.user_store
+                .read_with(cx, |user_store, _| user_store.current_user().unwrap().id),
+        )
+    }
+
+    async fn wait_for_current_user(&self, cx: &TestAppContext) {
+        let mut authed_user = self
+            .user_store
+            .read_with(cx, |user_store, _| user_store.watch_current_user());
+        while authed_user.next().await.unwrap().is_none() {}
+    }
+
+    async fn clear_contacts(&self, cx: &mut TestAppContext) {
+        self.user_store
+            .update(cx, |store, _| store.clear_contacts())
+            .await;
+    }
+
+    fn summarize_contacts(&self, cx: &TestAppContext) -> ContactsSummary {
+        self.user_store.read_with(cx, |store, _| ContactsSummary {
+            current: store
+                .contacts()
+                .iter()
+                .map(|contact| contact.user.github_login.clone())
+                .collect(),
+            outgoing_requests: store
+                .outgoing_contact_requests()
+                .iter()
+                .map(|user| user.github_login.clone())
+                .collect(),
+            incoming_requests: store
+                .incoming_contact_requests()
+                .iter()
+                .map(|user| user.github_login.clone())
+                .collect(),
+        })
+    }
+
+    async fn build_local_project(
+        &self,
+        root_path: impl AsRef<Path>,
+        cx: &mut TestAppContext,
+    ) -> (ModelHandle<Project>, WorktreeId) {
+        let project = cx.update(|cx| {
+            Project::local(
+                self.client.clone(),
+                self.user_store.clone(),
+                self.language_registry.clone(),
+                self.fs.clone(),
+                cx,
+            )
+        });
+        let (worktree, _) = project
+            .update(cx, |p, cx| {
+                p.find_or_create_local_worktree(root_path, true, cx)
+            })
+            .await
+            .unwrap();
+        worktree
+            .read_with(cx, |tree, _| tree.as_local().unwrap().scan_complete())
+            .await;
+        (project, worktree.read_with(cx, |tree, _| tree.id()))
+    }
+
+    async fn build_remote_project(
+        &self,
+        host_project_id: u64,
+        guest_cx: &mut TestAppContext,
+    ) -> ModelHandle<Project> {
+        let active_call = guest_cx.read(ActiveCall::global);
+        let room = active_call.read_with(guest_cx, |call, _| call.room().unwrap().clone());
+        room.update(guest_cx, |room, cx| {
+            room.join_project(
+                host_project_id,
+                self.language_registry.clone(),
+                self.fs.clone(),
+                cx,
+            )
+        })
+        .await
+        .unwrap()
+    }
+
+    fn build_workspace(
+        &self,
+        project: &ModelHandle<Project>,
+        cx: &mut TestAppContext,
+    ) -> ViewHandle<Workspace> {
+        let (_, root_view) = cx.add_window(|_| EmptyView);
+        cx.add_view(&root_view, |cx| {
+            Workspace::new(
+                Default::default(),
+                0,
+                project.clone(),
+                |_, _| unimplemented!(),
+                cx,
+            )
+        })
+    }
+
+    fn create_new_root_dir(&mut self) -> PathBuf {
+        format!(
+            "/{}-root-{}",
+            self.username,
+            util::post_inc(&mut self.next_root_dir_id)
+        )
+        .into()
+    }
+}
+
+impl Drop for TestClient {
+    fn drop(&mut self) {
+        self.client.teardown();
+    }
+}
--- a/crates/collab/src/tests/integration_tests.rs
+++ b/crates/collab/src/tests/integration_tests.rs
--- a/crates/collab/src/tests/randomized_integration_tests.rs
+++ b/crates/collab/src/tests/randomized_integration_tests.rs
--- a/crates/collab_ui/Cargo.toml
+++ b/crates/collab_ui/Cargo.toml
@@ -2,6 +2,7 @@
 name = "collab_ui"
 version = "0.1.0"
 edition = "2021"
+publish = false

 [lib]
 path = "src/collab_ui.rs"
@@ -21,10 +22,12 @@ test-support = [
 ]

 [dependencies]
+auto_update = { path = "../auto_update" }
 call = { path = "../call" }
 client = { path = "../client" }
 clock = { path = "../clock" }
 collections = { path = "../collections" }
+context_menu = { path = "../context_menu" }
 editor = { path = "../editor" }
 fuzzy = { path = "../fuzzy" }
 gpui = { path = "../gpui" }
--- a/crates/collab_ui/src/collab_titlebar_item.rs
+++ b/crates/collab_ui/src/collab_titlebar_item.rs
--- a/crates/collab_ui/src/collab_ui.rs
+++ b/crates/collab_ui/src/collab_ui.rs
@@ -1,19 +1,24 @@
 mod collab_titlebar_item;
+mod collaborator_list_popover;
 mod contact_finder;
 mod contact_list;
 mod contact_notification;
 mod contacts_popover;
+mod face_pile;
 mod incoming_call_notification;
 mod notifications;
 mod project_shared_notification;
+mod sharing_status_indicator;

+use anyhow::anyhow;
 use call::ActiveCall;
-pub use collab_titlebar_item::{CollabTitlebarItem, ToggleCollaborationMenu};
-use gpui::MutableAppContext;
-use project::Project;
+pub use collab_titlebar_item::{CollabTitlebarItem, ToggleContactsMenu};
+use gpui::{actions, MutableAppContext, Task};
 use std::sync::Arc;
 use workspace::{AppState, JoinProject, ToggleFollow, Workspace};

+actions!(collab, [ToggleScreenSharing]);
+
 pub fn init(app_state: Arc<AppState>, cx: &mut MutableAppContext) {
    collab_titlebar_item::init(cx);
    contact_notification::init(cx);
@@ -22,34 +27,60 @@ pub fn init(app_state: Arc<AppState>, cx: &mut MutableAppContext) {
    contacts_popover::init(cx);
    incoming_call_notification::init(cx);
    project_shared_notification::init(cx);
+    sharing_status_indicator::init(cx);

+    cx.add_global_action(toggle_screen_sharing);
    cx.add_global_action(move |action: &JoinProject, cx| {
-        let project_id = action.project_id;
-        let follow_user_id = action.follow_user_id;
-        let app_state = app_state.clone();
-        cx.spawn(|mut cx| async move {
-            let existing_workspace = cx.update(|cx| {
-                cx.window_ids()
-                    .filter_map(|window_id| cx.root_view::<Workspace>(window_id))
-                    .find(|workspace| {
-                        workspace.read(cx).project().read(cx).remote_id() == Some(project_id)
-                    })
-            });
+        join_project(action, app_state.clone(), cx);
+    });
+}

-            let workspace = if let Some(existing_workspace) = existing_workspace {
-                existing_workspace
+pub fn toggle_screen_sharing(_: &ToggleScreenSharing, cx: &mut MutableAppContext) {
+    if let Some(room) = ActiveCall::global(cx).read(cx).room().cloned() {
+        let toggle_screen_sharing = room.update(cx, |room, cx| {
+            if room.is_screen_sharing() {
+                Task::ready(room.unshare_screen(cx))
            } else {
-                let project = Project::remote(
-                    project_id,
-                    app_state.client.clone(),
-                    app_state.user_store.clone(),
-                    app_state.languages.clone(),
-                    app_state.fs.clone(),
-                    cx.clone(),
-                )
+                room.share_screen(cx)
+            }
+        });
+        toggle_screen_sharing.detach_and_log_err(cx);
+    }
+}
+
+fn join_project(action: &JoinProject, app_state: Arc<AppState>, cx: &mut MutableAppContext) {
+    let project_id = action.project_id;
+    let follow_user_id = action.follow_user_id;
+    cx.spawn(|mut cx| async move {
+        let existing_workspace = cx.update(|cx| {
+            cx.window_ids()
+                .filter_map(|window_id| cx.root_view::<Workspace>(window_id))
+                .find(|workspace| {
+                    workspace.read(cx).project().read(cx).remote_id() == Some(project_id)
+                })
+        });
+
+        let workspace = if let Some(existing_workspace) = existing_workspace {
+            existing_workspace
+        } else {
+            let active_call = cx.read(ActiveCall::global);
+            let room = active_call
+                .read_with(&cx, |call, _| call.room().cloned())
+                .ok_or_else(|| anyhow!("not in a call"))?;
+            let project = room
+                .update(&mut cx, |room, cx| {
+                    room.join_project(
+                        project_id,
+                        app_state.languages.clone(),
+                        app_state.fs.clone(),
+                        cx,
+                    )
+                })
                .await?;

-                let (_, workspace) = cx.add_window((app_state.build_window_options)(), |cx| {
+            let (_, workspace) = cx.add_window(
+                (app_state.build_window_options)(None, None, cx.platform().as_ref()),
+                |cx| {
                    let mut workspace = Workspace::new(
                        Default::default(),
                        0,
@@ -59,44 +90,44 @@ pub fn init(app_state: Arc<AppState>, cx: &mut MutableAppContext) {
                    );
                    (app_state.initialize_workspace)(&mut workspace, &app_state, cx);
                    workspace
-                });
-                workspace
-            };
+                },
+            );
+            workspace
+        };

-            cx.activate_window(workspace.window_id());
-            cx.platform().activate(true);
+        cx.activate_window(workspace.window_id());
+        cx.platform().activate(true);

-            workspace.update(&mut cx, |workspace, cx| {
-                if let Some(room) = ActiveCall::global(cx).read(cx).room().cloned() {
-                    let follow_peer_id = room
-                        .read(cx)
-                        .remote_participants()
-                        .iter()
-                        .find(|(_, participant)| participant.user.id == follow_user_id)
-                        .map(|(peer_id, _)| *peer_id)
-                        .or_else(|| {
-                            // If we couldn't follow the given user, follow the host instead.
-                            let collaborator = workspace
-                                .project()
-                                .read(cx)
-                                .collaborators()
-                                .values()
-                                .find(|collaborator| collaborator.replica_id == 0)?;
-                            Some(collaborator.peer_id)
-                        });
+        workspace.update(&mut cx, |workspace, cx| {
+            if let Some(room) = ActiveCall::global(cx).read(cx).room().cloned() {
+                let follow_peer_id = room
+                    .read(cx)
+                    .remote_participants()
+                    .iter()
+                    .find(|(_, participant)| participant.user.id == follow_user_id)
+                    .map(|(_, p)| p.peer_id)
+                    .or_else(|| {
+                        // If we couldn't follow the given user, follow the host instead.
+                        let collaborator = workspace
+                            .project()
+                            .read(cx)
+                            .collaborators()
+                            .values()
+                            .find(|collaborator| collaborator.replica_id == 0)?;
+                        Some(collaborator.peer_id)
+                    });

-                    if let Some(follow_peer_id) = follow_peer_id {
-                        if !workspace.is_following(follow_peer_id) {
-                            workspace
-                                .toggle_follow(&ToggleFollow(follow_peer_id), cx)
-                                .map(|follow| follow.detach_and_log_err(cx));
-                        }
+                if let Some(follow_peer_id) = follow_peer_id {
+                    if !workspace.is_being_followed(follow_peer_id) {
+                        workspace
+                            .toggle_follow(&ToggleFollow(follow_peer_id), cx)
+                            .map(|follow| follow.detach_and_log_err(cx));
                    }
                }
-            });
+            }
+        });

-            anyhow::Ok(())
-        })
-        .detach_and_log_err(cx);
-    });
+        anyhow::Ok(())
+    })
+    .detach_and_log_err(cx);
 }
--- a/crates/collab_ui/src/collaborator_list_popover.rs
+++ b/crates/collab_ui/src/collaborator_list_popover.rs
@@ -0,0 +1,165 @@
+use call::ActiveCall;
+use client::UserStore;
+use gpui::Action;
+use gpui::{
+    actions, elements::*, Entity, ModelHandle, MouseButton, RenderContext, View, ViewContext,
+};
+use settings::Settings;
+
+use crate::collab_titlebar_item::ToggleCollaboratorList;
+
+pub(crate) enum Event {
+    Dismissed,
+}
+
+enum Collaborator {
+    SelfUser { username: String },
+    RemoteUser { username: String },
+}
+
+actions!(collaborator_list_popover, [NoOp]);
+
+pub(crate) struct CollaboratorListPopover {
+    list_state: ListState,
+}
+
+impl Entity for CollaboratorListPopover {
+    type Event = Event;
+}
+
+impl View for CollaboratorListPopover {
+    fn ui_name() -> &'static str {
+        "CollaboratorListPopover"
+    }
+
+    fn render(&mut self, cx: &mut RenderContext<Self>) -> ElementBox {
+        let theme = cx.global::<Settings>().theme.clone();
+
+        MouseEventHandler::<Self>::new(0, cx, |_, _| {
+            List::new(self.list_state.clone())
+                .contained()
+                .with_style(theme.contacts_popover.container) //TODO: Change the name of this theme key
+                .constrained()
+                .with_width(theme.contacts_popover.width)
+                .with_height(theme.contacts_popover.height)
+                .boxed()
+        })
+        .on_down_out(MouseButton::Left, move |_, cx| {
+            cx.dispatch_action(ToggleCollaboratorList);
+        })
+        .boxed()
+    }
+
+    fn focus_out(&mut self, _: gpui::AnyViewHandle, cx: &mut ViewContext<Self>) {
+        cx.emit(Event::Dismissed);
+    }
+}
+
+impl CollaboratorListPopover {
+    pub fn new(user_store: ModelHandle<UserStore>, cx: &mut ViewContext<Self>) -> Self {
+        let active_call = ActiveCall::global(cx);
+
+        let mut collaborators = user_store
+            .read(cx)
+            .current_user()
+            .map(|u| Collaborator::SelfUser {
+                username: u.github_login.clone(),
+            })
+            .into_iter()
+            .collect::<Vec<_>>();
+
+        //TODO: What should the canonical sort here look like, consult contacts list implementation
+        if let Some(room) = active_call.read(cx).room() {
+            for participant in room.read(cx).remote_participants() {
+                collaborators.push(Collaborator::RemoteUser {
+                    username: participant.1.user.github_login.clone(),
+                });
+            }
+        }
+
+        Self {
+            list_state: ListState::new(
+                collaborators.len(),
+                Orientation::Top,
+                0.,
+                cx,
+                move |_, index, cx| match &collaborators[index] {
+                    Collaborator::SelfUser { username } => render_collaborator_list_entry(
+                        index,
+                        username,
+                        None::<NoOp>,
+                        None,
+                        Svg::new("icons/chevron_right_12.svg"),
+                        NoOp,
+                        "Leave call".to_owned(),
+                        cx,
+                    ),
+
+                    Collaborator::RemoteUser { username } => render_collaborator_list_entry(
+                        index,
+                        username,
+                        Some(NoOp),
+                        Some(format!("Follow {username}")),
+                        Svg::new("icons/x_mark_12.svg"),
+                        NoOp,
+                        format!("Remove {username} from call"),
+                        cx,
+                    ),
+                },
+            ),
+        }
+    }
+}
+
+fn render_collaborator_list_entry<UA: Action + Clone, IA: Action + Clone>(
+    index: usize,
+    username: &str,
+    username_action: Option<UA>,
+    username_tooltip: Option<String>,
+    icon: Svg,
+    icon_action: IA,
+    icon_tooltip: String,
+    cx: &mut RenderContext<CollaboratorListPopover>,
+) -> ElementBox {
+    enum Username {}
+    enum UsernameTooltip {}
+    enum Icon {}
+    enum IconTooltip {}
+
+    let theme = &cx.global::<Settings>().theme;
+    let username_theme = theme.contact_list.contact_username.text.clone();
+    let tooltip_theme = theme.tooltip.clone();
+
+    let username = MouseEventHandler::<Username>::new(index, cx, |_, _| {
+        Label::new(username.to_owned(), username_theme.clone()).boxed()
+    })
+    .on_click(MouseButton::Left, move |_, cx| {
+        if let Some(username_action) = username_action.clone() {
+            cx.dispatch_action(username_action);
+        }
+    });
+
+    Flex::row()
+        .with_child(if let Some(username_tooltip) = username_tooltip {
+            username
+                .with_tooltip::<UsernameTooltip, _>(
+                    index,
+                    username_tooltip,
+                    None,
+                    tooltip_theme.clone(),
+                    cx,
+                )
+                .boxed()
+        } else {
+            username.boxed()
+        })
+        .with_child(
+            MouseEventHandler::<Icon>::new(index, cx, |_, _| icon.boxed())
+                .on_click(MouseButton::Left, move |_, cx| {
+                    cx.dispatch_action(icon_action.clone())
+                })
+                .with_tooltip::<IconTooltip, _>(index, icon_tooltip, None, tooltip_theme, cx)
+                .boxed(),
+        )
+        .boxed()
+}
--- a/crates/collab_ui/src/contact_list.rs
+++ b/crates/collab_ui/src/contact_list.rs
@@ -1,37 +1,38 @@
-use std::{mem, sync::Arc};
-
+use super::collab_titlebar_item::LeaveCall;
 use crate::contacts_popover;
 use call::ActiveCall;
-use client::{Contact, PeerId, User, UserStore};
+use client::{proto::PeerId, Contact, User, UserStore};
 use editor::{Cancel, Editor};
+use futures::StreamExt;
 use fuzzy::{match_strings, StringMatchCandidate};
 use gpui::{
    elements::*,
    geometry::{rect::RectF, vector::vec2f},
-    impl_actions, impl_internal_actions, keymap, AppContext, CursorStyle, Entity, ModelHandle,
-    MouseButton, MutableAppContext, RenderContext, Subscription, View, ViewContext, ViewHandle,
+    impl_actions, impl_internal_actions,
+    keymap_matcher::KeymapContext,
+    AppContext, CursorStyle, Entity, ModelHandle, MouseButton, MutableAppContext, PromptLevel,
+    RenderContext, Subscription, View, ViewContext, ViewHandle,
 };
 use menu::{Confirm, SelectNext, SelectPrev};
 use project::Project;
 use serde::Deserialize;
 use settings::Settings;
+use std::{mem, sync::Arc};
 use theme::IconButton;
-use util::ResultExt;
 use workspace::{JoinProject, OpenSharedScreen};

 impl_actions!(contact_list, [RemoveContact, RespondToContactRequest]);
-impl_internal_actions!(contact_list, [ToggleExpanded, Call, LeaveCall]);
+impl_internal_actions!(contact_list, [ToggleExpanded, Call]);

 pub fn init(cx: &mut MutableAppContext) {
    cx.add_action(ContactList::remove_contact);
    cx.add_action(ContactList::respond_to_contact_request);
-    cx.add_action(ContactList::clear_filter);
+    cx.add_action(ContactList::cancel);
    cx.add_action(ContactList::select_next);
    cx.add_action(ContactList::select_prev);
    cx.add_action(ContactList::confirm);
    cx.add_action(ContactList::toggle_expanded);
    cx.add_action(ContactList::call);
-    cx.add_action(ContactList::leave_call);
 }

 #[derive(Clone, PartialEq)]
@@ -43,9 +44,6 @@ struct Call {
    initial_project: Option<ModelHandle<Project>>,
 }

-#[derive(Copy, Clone, PartialEq)]
-struct LeaveCall;
-
 #[derive(Clone, Copy, PartialEq, Eq, Debug, PartialOrd, Ord)]
 enum Section {
    ActiveCall,
@@ -297,9 +295,19 @@ impl ContactList {
    }

    fn remove_contact(&mut self, request: &RemoveContact, cx: &mut ViewContext<Self>) {
-        self.user_store
-            .update(cx, |store, cx| store.remove_contact(request.0, cx))
-            .detach();
+        let user_id = request.0;
+        let user_store = self.user_store.clone();
+        let prompt_message = "Are you sure you want to remove this contact?";
+        let mut answer = cx.prompt(PromptLevel::Warning, prompt_message, &["Remove", "Cancel"]);
+        cx.spawn(|_, mut cx| async move {
+            if answer.next().await == Some(0) {
+                user_store
+                    .update(&mut cx, |store, cx| store.remove_contact(user_id, cx))
+                    .await
+                    .unwrap();
+            }
+        })
+        .detach();
    }

    fn respond_to_contact_request(
@@ -314,7 +322,7 @@ impl ContactList {
            .detach();
    }

-    fn clear_filter(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
+    fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
        let did_clear = self.filter_editor.update(cx, |editor, cx| {
            if editor.buffer().read(cx).len(cx) > 0 {
                editor.set_text("", cx);
@@ -323,6 +331,7 @@ impl ContactList {
                false
            }
        });
+
        if !did_clear {
            cx.emit(Event::Dismissed);
        }
@@ -461,15 +470,13 @@ impl ContactList {
            // Populate remote participants.
            self.match_candidates.clear();
            self.match_candidates
-                .extend(
-                    room.remote_participants()
-                        .iter()
-                        .map(|(peer_id, participant)| StringMatchCandidate {
-                            id: peer_id.0 as usize,
-                            string: participant.user.github_login.clone(),
-                            char_bag: participant.user.github_login.chars().collect(),
-                        }),
-                );
+                .extend(room.remote_participants().iter().map(|(_, participant)| {
+                    StringMatchCandidate {
+                        id: participant.user.id as usize,
+                        string: participant.user.github_login.clone(),
+                        char_bag: participant.user.github_login.chars().collect(),
+                    }
+                }));
            let matches = executor.block(match_strings(
                &self.match_candidates,
                &query,
@@ -479,8 +486,8 @@ impl ContactList {
                executor.clone(),
            ));
            for mat in matches {
-                let peer_id = PeerId(mat.candidate_id as u32);
-                let participant = &room.remote_participants()[&peer_id];
+                let user_id = mat.candidate_id as u64;
+                let participant = &room.remote_participants()[&user_id];
                participant_entries.push(ContactEntry::CallParticipant {
                    user: participant.user.clone(),
                    is_pending: false,
@@ -496,7 +503,7 @@ impl ContactList {
                }
                if !participant.tracks.is_empty() {
                    participant_entries.push(ContactEntry::ParticipantScreen {
-                        peer_id,
+                        peer_id: participant.peer_id,
                        is_last: true,
                    });
                }
@@ -739,7 +746,7 @@ impl ContactList {
            )
            .with_children(if is_pending {
                Some(
-                    Label::new("Calling".to_string(), theme.calling_indicator.text.clone())
+                    Label::new("Calling", theme.calling_indicator.text.clone())
                        .contained()
                        .with_style(theme.calling_indicator.container)
                        .aligned()
@@ -881,75 +888,80 @@ impl ContactList {
        let baseline_offset =
            row.name.text.baseline_offset(font_cache) + (theme.row_height - line_height) / 2.;

-        MouseEventHandler::<OpenSharedScreen>::new(peer_id.0 as usize, cx, |mouse_state, _| {
-            let tree_branch = *tree_branch.style_for(mouse_state, is_selected);
-            let row = theme.project_row.style_for(mouse_state, is_selected);
+        MouseEventHandler::<OpenSharedScreen>::new(
+            peer_id.as_u64() as usize,
+            cx,
+            |mouse_state, _| {
+                let tree_branch = *tree_branch.style_for(mouse_state, is_selected);
+                let row = theme.project_row.style_for(mouse_state, is_selected);

-            Flex::row()
-                .with_child(
-                    Stack::new()
-                        .with_child(
-                            Canvas::new(move |bounds, _, cx| {
-                                let start_x = bounds.min_x() + (bounds.width() / 2.)
-                                    - (tree_branch.width / 2.);
-                                let end_x = bounds.max_x();
-                                let start_y = bounds.min_y();
-                                let end_y = bounds.min_y() + baseline_offset - (cap_height / 2.);
+                Flex::row()
+                    .with_child(
+                        Stack::new()
+                            .with_child(
+                                Canvas::new(move |bounds, _, cx| {
+                                    let start_x = bounds.min_x() + (bounds.width() / 2.)
+                                        - (tree_branch.width / 2.);
+                                    let end_x = bounds.max_x();
+                                    let start_y = bounds.min_y();
+                                    let end_y =
+                                        bounds.min_y() + baseline_offset - (cap_height / 2.);

-                                cx.scene.push_quad(gpui::Quad {
-                                    bounds: RectF::from_points(
-                                        vec2f(start_x, start_y),
-                                        vec2f(
-                                            start_x + tree_branch.width,
-                                            if is_last { end_y } else { bounds.max_y() },
+                                    cx.scene.push_quad(gpui::Quad {
+                                        bounds: RectF::from_points(
+                                            vec2f(start_x, start_y),
+                                            vec2f(
+                                                start_x + tree_branch.width,
+                                                if is_last { end_y } else { bounds.max_y() },
+                                            ),
                                        ),
-                                    ),
-                                    background: Some(tree_branch.color),
-                                    border: gpui::Border::default(),
-                                    corner_radius: 0.,
-                                });
-                                cx.scene.push_quad(gpui::Quad {
-                                    bounds: RectF::from_points(
-                                        vec2f(start_x, end_y),
-                                        vec2f(end_x, end_y + tree_branch.width),
-                                    ),
-                                    background: Some(tree_branch.color),
-                                    border: gpui::Border::default(),
-                                    corner_radius: 0.,
-                                });
-                            })
+                                        background: Some(tree_branch.color),
+                                        border: gpui::Border::default(),
+                                        corner_radius: 0.,
+                                    });
+                                    cx.scene.push_quad(gpui::Quad {
+                                        bounds: RectF::from_points(
+                                            vec2f(start_x, end_y),
+                                            vec2f(end_x, end_y + tree_branch.width),
+                                        ),
+                                        background: Some(tree_branch.color),
+                                        border: gpui::Border::default(),
+                                        corner_radius: 0.,
+                                    });
+                                })
+                                .boxed(),
+                            )
+                            .constrained()
+                            .with_width(host_avatar_height)
                            .boxed(),
-                        )
-                        .constrained()
-                        .with_width(host_avatar_height)
-                        .boxed(),
-                )
-                .with_child(
-                    Svg::new("icons/disable_screen_sharing_12.svg")
-                        .with_color(row.icon.color)
-                        .constrained()
-                        .with_width(row.icon.width)
-                        .aligned()
-                        .left()
-                        .contained()
-                        .with_style(row.icon.container)
-                        .boxed(),
-                )
-                .with_child(
-                    Label::new("Screen".into(), row.name.text.clone())
-                        .aligned()
-                        .left()
-                        .contained()
-                        .with_style(row.name.container)
-                        .flex(1., false)
-                        .boxed(),
-                )
-                .constrained()
-                .with_height(theme.row_height)
-                .contained()
-                .with_style(row.container)
-                .boxed()
-        })
+                    )
+                    .with_child(
+                        Svg::new("icons/disable_screen_sharing_12.svg")
+                            .with_color(row.icon.color)
+                            .constrained()
+                            .with_width(row.icon.width)
+                            .aligned()
+                            .left()
+                            .contained()
+                            .with_style(row.icon.container)
+                            .boxed(),
+                    )
+                    .with_child(
+                        Label::new("Screen", row.name.text.clone())
+                            .aligned()
+                            .left()
+                            .contained()
+                            .with_style(row.name.container)
+                            .flex(1., false)
+                            .boxed(),
+                    )
+                    .constrained()
+                    .with_height(theme.row_height)
+                    .contained()
+                    .with_style(row.container)
+                    .boxed()
+            },
+        )
        .with_cursor_style(CursorStyle::PointingHand)
        .on_click(MouseButton::Left, move |_, cx| {
            cx.dispatch_action(OpenSharedScreen { peer_id });
@@ -965,6 +977,7 @@ impl ContactList {
        cx: &mut RenderContext<Self>,
    ) -> ElementBox {
        enum Header {}
+        enum LeaveCallContactList {}

        let header_style = theme
            .header_row
@@ -977,9 +990,9 @@ impl ContactList {
        };
        let leave_call = if section == Section::ActiveCall {
            Some(
-                MouseEventHandler::<LeaveCall>::new(0, cx, |state, _| {
+                MouseEventHandler::<LeaveCallContactList>::new(0, cx, |state, _| {
                    let style = theme.leave_call.style_for(state, false);
-                    Label::new("Leave Session".into(), style.text.clone())
+                    Label::new("Leave Call", style.text.clone())
                        .contained()
                        .with_style(style.container)
                        .boxed()
@@ -1011,7 +1024,7 @@ impl ContactList {
                    .boxed(),
                )
                .with_child(
-                    Label::new(text.to_string(), header_style.text.clone())
+                    Label::new(text, header_style.text.clone())
                        .aligned()
                        .left()
                        .contained()
@@ -1046,7 +1059,7 @@ impl ContactList {
        let user_id = contact.user.id;
        let initial_project = project.clone();
        let mut element =
-            MouseEventHandler::<Contact>::new(contact.user.id as usize, cx, |_, _| {
+            MouseEventHandler::<Contact>::new(contact.user.id as usize, cx, |_, cx| {
                Flex::row()
                    .with_children(contact.user.avatar.clone().map(|avatar| {
                        let status_badge = if contact.online {
@@ -1088,9 +1101,30 @@ impl ContactList {
                        .flex(1., true)
                        .boxed(),
                    )
+                    .with_child(
+                        MouseEventHandler::<Cancel>::new(
+                            contact.user.id as usize,
+                            cx,
+                            |mouse_state, _| {
+                                let button_style =
+                                    theme.contact_button.style_for(mouse_state, false);
+                                render_icon_button(button_style, "icons/x_mark_8.svg")
+                                    .aligned()
+                                    .flex_float()
+                                    .boxed()
+                            },
+                        )
+                        .with_padding(Padding::uniform(2.))
+                        .with_cursor_style(CursorStyle::PointingHand)
+                        .on_click(MouseButton::Left, move |_, cx| {
+                            cx.dispatch_action(RemoveContact(user_id))
+                        })
+                        .flex_float()
+                        .boxed(),
+                    )
                    .with_children(if calling {
                        Some(
-                            Label::new("Calling".to_string(), theme.calling_indicator.text.clone())
+                            Label::new("Calling", theme.calling_indicator.text.clone())
                                .contained()
                                .with_style(theme.calling_indicator.container)
                                .aligned()
@@ -1247,12 +1281,6 @@ impl ContactList {
            })
            .detach_and_log_err(cx);
    }
-
-    fn leave_call(&mut self, _: &LeaveCall, cx: &mut ViewContext<Self>) {
-        ActiveCall::global(cx)
-            .update(cx, |call, cx| call.hang_up(cx))
-            .log_err();
-    }
 }

 impl Entity for ContactList {
@@ -1264,9 +1292,9 @@ impl View for ContactList {
        "ContactList"
    }

-    fn keymap_context(&self, _: &AppContext) -> keymap::Context {
+    fn keymap_context(&self, _: &AppContext) -> KeymapContext {
        let mut cx = Self::default_keymap_context();
-        cx.set.insert("menu".into());
+        cx.add_identifier("menu");
        cx
    }

@@ -1298,7 +1326,7 @@ impl View for ContactList {
                        })
                        .with_tooltip::<AddContact, _>(
                            0,
-                            "Add contact".into(),
+                            "Search for new contact".into(),
                            None,
                            theme.tooltip.clone(),
                            cx,
--- a/crates/collab_ui/src/contact_notification.rs
+++ b/crates/collab_ui/src/contact_notification.rs
@@ -48,7 +48,7 @@ impl View for ContactNotification {
            ContactEventKind::Requested => render_user_notification(
                self.user.clone(),
                "wants to add you as a contact",
-                Some("They won't know if you decline."),
+                Some("They won't be alerted if you decline."),
                Dismiss(self.user.id),
                vec![
                    (
--- a/crates/collab_ui/src/contacts_popover.rs
+++ b/crates/collab_ui/src/contacts_popover.rs
@@ -1,4 +1,4 @@
-use crate::{contact_finder::ContactFinder, contact_list::ContactList, ToggleCollaborationMenu};
+use crate::{contact_finder::ContactFinder, contact_list::ContactList, ToggleContactsMenu};
 use client::UserStore;
 use gpui::{
    actions, elements::*, ClipboardItem, CursorStyle, Entity, ModelHandle, MouseButton,
@@ -155,7 +155,7 @@ impl View for ContactsPopover {
                .boxed()
        })
        .on_down_out(MouseButton::Left, move |_, cx| {
-            cx.dispatch_action(ToggleCollaborationMenu);
+            cx.dispatch_action(ToggleContactsMenu);
        })
        .boxed()
    }
--- a/crates/collab_ui/src/face_pile.rs
+++ b/crates/collab_ui/src/face_pile.rs
@@ -0,0 +1,101 @@
+use std::ops::Range;
+
+use gpui::{
+    geometry::{
+        rect::RectF,
+        vector::{vec2f, Vector2F},
+    },
+    json::ToJson,
+    serde_json::{self, json},
+    Axis, DebugContext, Element, ElementBox, MeasurementContext, PaintContext,
+};
+
+pub(crate) struct FacePile {
+    overlap: f32,
+    faces: Vec<ElementBox>,
+}
+
+impl FacePile {
+    pub fn new(overlap: f32) -> FacePile {
+        FacePile {
+            overlap,
+            faces: Vec::new(),
+        }
+    }
+}
+
+impl Element for FacePile {
+    type LayoutState = ();
+    type PaintState = ();
+
+    fn layout(
+        &mut self,
+        constraint: gpui::SizeConstraint,
+        cx: &mut gpui::LayoutContext,
+    ) -> (Vector2F, Self::LayoutState) {
+        debug_assert!(constraint.max_along(Axis::Horizontal) == f32::INFINITY);
+
+        let mut width = 0.;
+        for face in &mut self.faces {
+            width += face.layout(constraint, cx).x();
+        }
+        width -= self.overlap * self.faces.len().saturating_sub(1) as f32;
+
+        (Vector2F::new(width, constraint.max.y()), ())
+    }
+
+    fn paint(
+        &mut self,
+        bounds: RectF,
+        visible_bounds: RectF,
+        _layout: &mut Self::LayoutState,
+        cx: &mut PaintContext,
+    ) -> Self::PaintState {
+        let visible_bounds = bounds.intersection(visible_bounds).unwrap_or_default();
+
+        let origin_y = bounds.upper_right().y();
+        let mut origin_x = bounds.upper_right().x();
+
+        for face in self.faces.iter_mut().rev() {
+            let size = face.size();
+            origin_x -= size.x();
+            cx.paint_layer(None, |cx| {
+                face.paint(vec2f(origin_x, origin_y), visible_bounds, cx);
+            });
+            origin_x += self.overlap;
+        }
+
+        ()
+    }
+
+    fn rect_for_text_range(
+        &self,
+        _: Range<usize>,
+        _: RectF,
+        _: RectF,
+        _: &Self::LayoutState,
+        _: &Self::PaintState,
+        _: &MeasurementContext,
+    ) -> Option<RectF> {
+        None
+    }
+
+    fn debug(
+        &self,
+        bounds: RectF,
+        _: &Self::LayoutState,
+        _: &Self::PaintState,
+        _: &DebugContext,
+    ) -> serde_json::Value {
+        json!({
+            "type": "FacePile",
+            "bounds": bounds.to_json()
+        })
+    }
+}
+
+impl Extend<ElementBox> for FacePile {
+    fn extend<T: IntoIterator<Item = ElementBox>>(&mut self, children: T) {
+        self.faces.extend(children);
+    }
+}
--- a/crates/collab_ui/src/incoming_call_notification.rs
+++ b/crates/collab_ui/src/incoming_call_notification.rs
@@ -32,11 +32,12 @@ pub fn init(cx: &mut MutableAppContext) {
                });

                for screen in cx.platform().screens() {
-                    let screen_size = screen.size();
+                    let screen_bounds = screen.bounds();
                    let (window_id, _) = cx.add_window(
                        WindowOptions {
                            bounds: WindowBounds::Fixed(RectF::new(
-                                vec2f(screen_size.x() - window_size.x() - PADDING, PADDING),
+                                screen_bounds.upper_right()
+                                    - vec2f(PADDING + window_size.x(), PADDING),
                                window_size,
                            )),
                            titlebar: None,
@@ -48,6 +49,7 @@ pub fn init(cx: &mut MutableAppContext) {
                        },
                        |_| IncomingCallNotification::new(incoming_call.clone()),
                    );
+
                    notification_windows.push(window_id);
                }
            }
@@ -170,7 +172,7 @@ impl IncomingCallNotification {
            .with_child(
                MouseEventHandler::<Accept>::new(0, cx, |_, cx| {
                    let theme = &cx.global::<Settings>().theme.incoming_call_notification;
-                    Label::new("Accept".to_string(), theme.accept_button.text.clone())
+                    Label::new("Accept", theme.accept_button.text.clone())
                        .aligned()
                        .contained()
                        .with_style(theme.accept_button.container)
@@ -186,7 +188,7 @@ impl IncomingCallNotification {
            .with_child(
                MouseEventHandler::<Decline>::new(0, cx, |_, cx| {
                    let theme = &cx.global::<Settings>().theme.incoming_call_notification;
-                    Label::new("Decline".to_string(), theme.decline_button.text.clone())
+                    Label::new("Decline", theme.decline_button.text.clone())
                        .aligned()
                        .contained()
                        .with_style(theme.decline_button.container)
@@ -225,6 +227,7 @@ impl View for IncomingCallNotification {
            .theme
            .incoming_call_notification
            .background;
+
        Flex::row()
            .with_child(self.render_caller(cx))
            .with_child(self.render_buttons(cx))
--- a/crates/collab_ui/src/notifications.rs
+++ b/crates/collab_ui/src/notifications.rs
@@ -11,8 +11,8 @@ enum Button {}

 pub fn render_user_notification<V: View, A: Action + Clone>(
    user: Arc<User>,
-    title: &str,
-    body: Option<&str>,
+    title: &'static str,
+    body: Option<&'static str>,
    dismiss_action: A,
    buttons: Vec<(&'static str, Box<dyn Action>)>,
    cx: &mut RenderContext<V>,
@@ -83,7 +83,7 @@ pub fn render_user_notification<V: View, A: Action + Clone>(
                .named("contact notification header"),
        )
        .with_children(body.map(|body| {
-            Label::new(body.to_string(), theme.body_message.text.clone())
+            Label::new(body, theme.body_message.text.clone())
                .contained()
                .with_style(theme.body_message.container)
                .boxed()
@@ -97,7 +97,7 @@ pub fn render_user_notification<V: View, A: Action + Clone>(
                        |(ix, (message, action))| {
                            MouseEventHandler::<Button>::new(ix, cx, |state, _| {
                                let button = theme.button.style_for(state, false);
-                                Label::new(message.to_string(), button.text.clone())
+                                Label::new(message, button.text.clone())
                                    .contained()
                                    .with_style(button.container)
                                    .boxed()
--- a/crates/collab_ui/src/project_shared_notification.rs
+++ b/crates/collab_ui/src/project_shared_notification.rs
@@ -31,11 +31,11 @@ pub fn init(cx: &mut MutableAppContext) {
            let window_size = vec2f(theme.window_width, theme.window_height);

            for screen in cx.platform().screens() {
-                let screen_size = screen.size();
+                let screen_bounds = screen.bounds();
                let (window_id, _) = cx.add_window(
                    WindowOptions {
                        bounds: WindowBounds::Fixed(RectF::new(
-                            vec2f(screen_size.x() - window_size.x() - PADDING, PADDING),
+                            screen_bounds.upper_right() - vec2f(PADDING + window_size.x(), PADDING),
                            window_size,
                        )),
                        titlebar: None,
@@ -175,7 +175,7 @@ impl ProjectSharedNotification {
            .with_child(
                MouseEventHandler::<Open>::new(0, cx, |_, cx| {
                    let theme = &cx.global::<Settings>().theme.project_shared_notification;
-                    Label::new("Open".to_string(), theme.open_button.text.clone())
+                    Label::new("Open", theme.open_button.text.clone())
                        .aligned()
                        .contained()
                        .with_style(theme.open_button.container)
@@ -194,7 +194,7 @@ impl ProjectSharedNotification {
            .with_child(
                MouseEventHandler::<Dismiss>::new(0, cx, |_, cx| {
                    let theme = &cx.global::<Settings>().theme.project_shared_notification;
-                    Label::new("Dismiss".to_string(), theme.dismiss_button.text.clone())
+                    Label::new("Dismiss", theme.dismiss_button.text.clone())
                        .aligned()
                        .contained()
                        .with_style(theme.dismiss_button.container)
--- a/crates/collab_ui/src/sharing_status_indicator.rs
+++ b/crates/collab_ui/src/sharing_status_indicator.rs
@@ -0,0 +1,59 @@
+use call::ActiveCall;
+use gpui::{
+    color::Color,
+    elements::{MouseEventHandler, Svg},
+    Appearance, Element, ElementBox, Entity, MouseButton, MutableAppContext, RenderContext, View,
+};
+use settings::Settings;
+
+use crate::ToggleScreenSharing;
+
+pub fn init(cx: &mut MutableAppContext) {
+    let active_call = ActiveCall::global(cx);
+
+    let mut status_indicator = None;
+    cx.observe(&active_call, move |call, cx| {
+        if let Some(room) = call.read(cx).room() {
+            if room.read(cx).is_screen_sharing() {
+                if status_indicator.is_none() && cx.global::<Settings>().show_call_status_icon {
+                    status_indicator = Some(cx.add_status_bar_item(|_| SharingStatusIndicator));
+                }
+            } else if let Some((window_id, _)) = status_indicator.take() {
+                cx.remove_status_bar_item(window_id);
+            }
+        }
+    })
+    .detach();
+}
+
+pub struct SharingStatusIndicator;
+
+impl Entity for SharingStatusIndicator {
+    type Event = ();
+}
+
+impl View for SharingStatusIndicator {
+    fn ui_name() -> &'static str {
+        "SharingStatusIndicator"
+    }
+
+    fn render(&mut self, cx: &mut RenderContext<'_, Self>) -> ElementBox {
+        let color = match cx.appearance {
+            Appearance::Light | Appearance::VibrantLight => Color::black(),
+            Appearance::Dark | Appearance::VibrantDark => Color::white(),
+        };
+
+        MouseEventHandler::<Self>::new(0, cx, |_, _| {
+            Svg::new("icons/disable_screen_sharing_12.svg")
+                .with_color(color)
+                .constrained()
+                .with_width(18.)
+                .aligned()
+                .boxed()
+        })
+        .on_click(MouseButton::Left, |_, cx| {
+            cx.dispatch_action(ToggleScreenSharing);
+        })
+        .boxed()
+    }
+}
--- a/crates/collections/Cargo.toml
+++ b/crates/collections/Cargo.toml
@@ -2,6 +2,7 @@
 name = "collections"
 version = "0.1.0"
 edition = "2021"
+publish = false

 [lib]
 path = "src/collections.rs"
--- a/crates/command_palette/Cargo.toml
+++ b/crates/command_palette/Cargo.toml
@@ -2,6 +2,7 @@
 name = "command_palette"
 version = "0.1.0"
 edition = "2021"
+publish = false

 [lib]
 path = "src/command_palette.rs"
--- a/crates/command_palette/src/command_palette.rs
+++ b/crates/command_palette/src/command_palette.rs
@@ -3,7 +3,7 @@ use fuzzy::{StringMatch, StringMatchCandidate};
 use gpui::{
    actions,
    elements::{ChildView, Flex, Label, ParentElement},
-    keymap::Keystroke,
+    keymap_matcher::Keystroke,
    Action, AnyViewHandle, Element, Entity, MouseState, MutableAppContext, RenderContext, View,
    ViewContext, ViewHandle,
 };
@@ -64,8 +64,10 @@ impl CommandPalette {
                    name: humanize_action_name(name),
                    action,
                    keystrokes: bindings
+                        .iter()
+                        .map(|binding| binding.keystrokes())
                        .last()
-                        .map_or(Vec::new(), |binding| binding.keystrokes().to_vec()),
+                        .map_or(Vec::new(), |keystrokes| keystrokes.to_vec()),
                })
            })
            .collect();
@@ -255,7 +257,7 @@ impl PickerDelegate for CommandPalette {
                        .filter_map(|(modifier, label)| {
                            if modifier {
                                Some(
-                                    Label::new(label.into(), key_style.label.clone())
+                                    Label::new(label, key_style.label.clone())
                                        .contained()
                                        .with_style(key_style.container)
                                        .boxed(),
--- a/crates/context_menu/Cargo.toml
+++ b/crates/context_menu/Cargo.toml
@@ -2,6 +2,7 @@
 name = "context_menu"
 version = "0.1.0"
 edition = "2021"
+publish = false

 [lib]
 path = "src/context_menu.rs"
--- a/crates/context_menu/src/context_menu.rs
+++ b/crates/context_menu/src/context_menu.rs
@@ -1,11 +1,13 @@
 use gpui::{
-    elements::*, geometry::vector::Vector2F, impl_internal_actions, keymap, platform::CursorStyle,
-    Action, AnyViewHandle, AppContext, Axis, Entity, MouseButton, MutableAppContext, RenderContext,
-    SizeConstraint, Subscription, View, ViewContext,
+    elements::*, geometry::vector::Vector2F, impl_internal_actions, keymap_matcher::KeymapContext,
+    platform::CursorStyle, Action, AnyViewHandle, AppContext, Axis, Entity, MouseButton,
+    MutableAppContext, RenderContext, SizeConstraint, Subscription, View, ViewContext,
 };
 use menu::*;
 use settings::Settings;
-use std::{any::TypeId, time::Duration};
+use std::{any::TypeId, borrow::Cow, time::Duration};
+
+pub type StaticItem = Box<dyn Fn(&mut MutableAppContext) -> ElementBox>;

 #[derive(Copy, Clone, PartialEq)]
 struct Clicked;
@@ -24,16 +26,17 @@ pub fn init(cx: &mut MutableAppContext) {

 pub enum ContextMenuItem {
    Item {
-        label: String,
+        label: Cow<'static, str>,
        action: Box<dyn Action>,
    },
+    Static(StaticItem),
    Separator,
 }

 impl ContextMenuItem {
-    pub fn item(label: impl ToString, action: impl 'static + Action) -> Self {
+    pub fn item(label: impl Into<Cow<'static, str>>, action: impl 'static + Action) -> Self {
        Self::Item {
-            label: label.to_string(),
+            label: label.into(),
            action: Box::new(action),
        }
    }
@@ -42,14 +45,14 @@ impl ContextMenuItem {
        Self::Separator
    }

-    fn is_separator(&self) -> bool {
-        matches!(self, Self::Separator)
+    fn is_action(&self) -> bool {
+        matches!(self, Self::Item { .. })
    }

    fn action_id(&self) -> Option<TypeId> {
        match self {
            ContextMenuItem::Item { action, .. } => Some(action.id()),
-            ContextMenuItem::Separator => None,
+            ContextMenuItem::Static(..) | ContextMenuItem::Separator => None,
        }
    }
 }
@@ -58,11 +61,13 @@ pub struct ContextMenu {
    show_count: usize,
    anchor_position: Vector2F,
    anchor_corner: AnchorCorner,
+    position_mode: OverlayPositionMode,
    items: Vec<ContextMenuItem>,
    selected_index: Option<usize>,
    visible: bool,
    previously_focused_view_id: Option<usize>,
    clicked: bool,
+    parent_view_id: usize,
    _actions_observation: Subscription,
 }

@@ -75,9 +80,9 @@ impl View for ContextMenu {
        "ContextMenu"
    }

-    fn keymap_context(&self, _: &AppContext) -> keymap::Context {
+    fn keymap_context(&self, _: &AppContext) -> KeymapContext {
        let mut cx = Self::default_keymap_context();
-        cx.set.insert("menu".into());
+        cx.add_identifier("menu");
        cx
    }

@@ -104,6 +109,7 @@ impl View for ContextMenu {
            .with_fit_mode(OverlayFitMode::SnapToWindow)
            .with_anchor_position(self.anchor_position)
            .with_anchor_corner(self.anchor_corner)
+            .with_position_mode(self.position_mode)
            .boxed()
    }

@@ -114,15 +120,19 @@ impl View for ContextMenu {

 impl ContextMenu {
    pub fn new(cx: &mut ViewContext<Self>) -> Self {
+        let parent_view_id = cx.parent().unwrap();
+
        Self {
            show_count: 0,
            anchor_position: Default::default(),
            anchor_corner: AnchorCorner::TopLeft,
+            position_mode: OverlayPositionMode::Window,
            items: Default::default(),
            selected_index: Default::default(),
            visible: Default::default(),
            previously_focused_view_id: Default::default(),
            clicked: false,
+            parent_view_id,
            _actions_observation: cx.observe_actions(Self::action_dispatched),
        }
    }
@@ -184,13 +194,13 @@ impl ContextMenu {
    }

    fn select_first(&mut self, _: &SelectFirst, cx: &mut ViewContext<Self>) {
-        self.selected_index = self.items.iter().position(|item| !item.is_separator());
+        self.selected_index = self.items.iter().position(|item| item.is_action());
        cx.notify();
    }

    fn select_last(&mut self, _: &SelectLast, cx: &mut ViewContext<Self>) {
        for (ix, item) in self.items.iter().enumerate().rev() {
-            if !item.is_separator() {
+            if item.is_action() {
                self.selected_index = Some(ix);
                cx.notify();
                break;
@@ -201,7 +211,7 @@ impl ContextMenu {
    fn select_next(&mut self, _: &SelectNext, cx: &mut ViewContext<Self>) {
        if let Some(ix) = self.selected_index {
            for (ix, item) in self.items.iter().enumerate().skip(ix + 1) {
-                if !item.is_separator() {
+                if item.is_action() {
                    self.selected_index = Some(ix);
                    cx.notify();
                    break;
@@ -215,7 +225,7 @@ impl ContextMenu {
    fn select_prev(&mut self, _: &SelectPrev, cx: &mut ViewContext<Self>) {
        if let Some(ix) = self.selected_index {
            for (ix, item) in self.items.iter().enumerate().take(ix).rev() {
-                if !item.is_separator() {
+                if item.is_action() {
                    self.selected_index = Some(ix);
                    cx.notify();
                    break;
@@ -230,7 +240,7 @@ impl ContextMenu {
        &mut self,
        anchor_position: Vector2F,
        anchor_corner: AnchorCorner,
-        items: impl IntoIterator<Item = ContextMenuItem>,
+        items: Vec<ContextMenuItem>,
        cx: &mut ViewContext<Self>,
    ) {
        let mut items = items.into_iter().peekable();
@@ -250,7 +260,12 @@ impl ContextMenu {
        cx.notify();
    }

+    pub fn set_position_mode(&mut self, mode: OverlayPositionMode) {
+        self.position_mode = mode;
+    }
+
    fn render_menu_for_measurement(&self, cx: &mut RenderContext<Self>) -> impl Element {
+        let window_id = cx.window_id();
        let style = cx.global::<Settings>().theme.context_menu.clone();
        Flex::row()
            .with_child(
@@ -268,6 +283,9 @@ impl ContextMenu {
                                    .with_style(style.container)
                                    .boxed()
                            }
+
+                            ContextMenuItem::Static(f) => f(cx),
+
                            ContextMenuItem::Separator => Empty::new()
                                .collapsed()
                                .contained()
@@ -289,12 +307,17 @@ impl ContextMenu {
                                    Some(ix) == self.selected_index,
                                );
                                KeystrokeLabel::new(
+                                    window_id,
+                                    self.parent_view_id,
                                    action.boxed_clone(),
                                    style.keystroke.container,
                                    style.keystroke.text.clone(),
                                )
                                .boxed()
                            }
+
+                            ContextMenuItem::Static(_) => Empty::new().boxed(),
+
                            ContextMenuItem::Separator => Empty::new()
                                .collapsed()
                                .constrained()
@@ -318,6 +341,7 @@ impl ContextMenu {

        let style = cx.global::<Settings>().theme.context_menu.clone();

+        let window_id = cx.window_id();
        MouseEventHandler::<Menu>::new(0, cx, |_, cx| {
            Flex::column()
                .with_children(self.items.iter().enumerate().map(|(ix, item)| {
@@ -331,12 +355,14 @@ impl ContextMenu {

                                Flex::row()
                                    .with_child(
-                                        Label::new(label.to_string(), style.label.clone())
+                                        Label::new(label.clone(), style.label.clone())
                                            .contained()
                                            .boxed(),
                                    )
                                    .with_child({
                                        KeystrokeLabel::new(
+                                            window_id,
+                                            self.parent_view_id,
                                            action.boxed_clone(),
                                            style.keystroke.container,
                                            style.keystroke.text.clone(),
@@ -356,6 +382,9 @@ impl ContextMenu {
                            .on_drag(MouseButton::Left, |_, _| {})
                            .boxed()
                        }
+
+                        ContextMenuItem::Static(f) => f(cx),
+
                        ContextMenuItem::Separator => Empty::new()
                            .constrained()
                            .with_height(1.)
--- a/crates/db/Cargo.toml
+++ b/crates/db/Cargo.toml
@@ -2,6 +2,7 @@
 name = "db"
 version = "0.1.0"
 edition = "2021"
+publish = false

 [lib]
 path = "src/db.rs"
--- a/crates/db/src/db.rs
+++ b/crates/db/src/db.rs
@@ -20,8 +20,8 @@ use std::fs::create_dir_all;
 use std::path::{Path, PathBuf};
 use std::sync::atomic::{AtomicBool, Ordering};
 use std::time::{SystemTime, UNIX_EPOCH};
-use util::{async_iife, ResultExt};
 use util::channel::ReleaseChannel;
+use util::{async_iife, ResultExt};

 const CONNECTION_INITIALIZE_QUERY: &'static str = sql!(
    PRAGMA foreign_keys=TRUE;
@@ -39,16 +39,24 @@ const FALLBACK_DB_NAME: &'static str = "FALLBACK_MEMORY_DB";
 const DB_FILE_NAME: &'static str = "db.sqlite";

 lazy_static::lazy_static! {
+    static ref ZED_STATELESS: bool = std::env::var("ZED_STATELESS").map_or(false, |v| !v.is_empty());
    static ref DB_FILE_OPERATIONS: Mutex<()> = Mutex::new(());
    pub static ref BACKUP_DB_PATH: RwLock<Option<PathBuf>> = RwLock::new(None);
-    pub static ref ALL_FILE_DB_FAILED: AtomicBool = AtomicBool::new(false);    
+    pub static ref ALL_FILE_DB_FAILED: AtomicBool = AtomicBool::new(false);
 }

 /// Open or create a database at the given directory path.
 /// This will retry a couple times if there are failures. If opening fails once, the db directory
 /// is moved to a backup folder and a new one is created. If that fails, a shared in memory db is created.
 /// In either case, static variables are set so that the user can be notified.
-pub async fn open_db<M: Migrator + 'static>(db_dir: &Path, release_channel: &ReleaseChannel) -> ThreadSafeConnection<M> {
+pub async fn open_db<M: Migrator + 'static>(
+    db_dir: &Path,
+    release_channel: &ReleaseChannel,
+) -> ThreadSafeConnection<M> {
+    if *ZED_STATELESS {
+        return open_fallback_db().await;
+    }
+
    let release_channel_name = release_channel.dev_name();
    let main_db_dir = db_dir.join(Path::new(&format!("0-{}", release_channel_name)));

@@ -64,11 +72,11 @@ pub async fn open_db<M: Migrator + 'static>(db_dir: &Path, release_channel: &Rel
        //
        // Basically: Don't ever push invalid migrations to stable or everyone will have
        // a bad time.
-        
+
        // If no db folder, create one at 0-{channel}
        create_dir_all(&main_db_dir).context("Could not create db directory")?;
        let db_path = main_db_dir.join(Path::new(DB_FILE_NAME));
-        
+
        // Optimistically open databases in parallel
        if !DB_FILE_OPERATIONS.is_locked() {
            // Try building a connection
@@ -76,7 +84,7 @@ pub async fn open_db<M: Migrator + 'static>(db_dir: &Path, release_channel: &Rel
                return Ok(connection)
            };
        }
-        
+
        // Take a lock in the failure case so that we move the db once per process instead 
        // of potentially multiple times from different threads. This shouldn't happen in the
        // normal path
@@ -84,12 +92,12 @@ pub async fn open_db<M: Migrator + 'static>(db_dir: &Path, release_channel: &Rel
        if let Some(connection) = open_main_db(&db_path).await {
            return Ok(connection)
        };
-        
+
        let backup_timestamp = SystemTime::now()
            .duration_since(UNIX_EPOCH)
            .expect("System clock is set before the unix timestamp, Zed does not support this region of spacetime")
            .as_millis();
-        
+
        // If failed, move 0-{channel} to {current unix timestamp}-{channel}
        let backup_db_dir = db_dir.join(Path::new(&format!(
            "{}-{}",
@@ -105,7 +113,7 @@ pub async fn open_db<M: Migrator + 'static>(db_dir: &Path, release_channel: &Rel
            let mut guard = BACKUP_DB_PATH.write();
            *guard = Some(backup_db_dir);
        }
-        
+
        // Create a new 0-{channel}
        create_dir_all(&main_db_dir).context("Should be able to create the database directory")?;
        let db_path = main_db_dir.join(Path::new(DB_FILE_NAME));
@@ -117,10 +125,10 @@ pub async fn open_db<M: Migrator + 'static>(db_dir: &Path, release_channel: &Rel
    if let Some(connection) = connection {
        return connection;
    }
-   
+
    // Set another static ref so that we can escalate the notification
    ALL_FILE_DB_FAILED.store(true, Ordering::Release);
-    
+
    // If still failed, create an in memory db with a known name
    open_fallback_db().await
 }
@@ -174,15 +182,15 @@ macro_rules! define_connection {
                &self.0
            }
        }
-        
+
        impl $crate::sqlez::domain::Domain for $t {
            fn name() -> &'static str {
                stringify!($t)
            }
-            
+
            fn migrations() -> &'static [&'static str] {
                $migrations
-            } 
+            }
        }

        #[cfg(any(test, feature = "test-support"))]
@@ -205,15 +213,15 @@ macro_rules! define_connection {
                &self.0
            }
        }
-        
+
        impl $crate::sqlez::domain::Domain for $t {
            fn name() -> &'static str {
                stringify!($t)
            }
-            
+
            fn migrations() -> &'static [&'static str] {
                $migrations
-            } 
+            }
        }

        #[cfg(any(test, feature = "test-support"))]
@@ -232,134 +240,155 @@ macro_rules! define_connection {
 mod tests {
    use std::{fs, thread};

-    use sqlez::{domain::Domain, connection::Connection};
+    use sqlez::{connection::Connection, domain::Domain};
    use sqlez_macros::sql;
    use tempdir::TempDir;

    use crate::{open_db, DB_FILE_NAME};
-        
+
    // Test bad migration panics
    #[gpui::test]
    #[should_panic]
    async fn test_bad_migration_panics() {
        enum BadDB {}
-        
+
        impl Domain for BadDB {
            fn name() -> &'static str {
                "db_tests"
            }
-            
+
            fn migrations() -> &'static [&'static str] {
-                &[sql!(CREATE TABLE test(value);),
+                &[
+                    sql!(CREATE TABLE test(value);),
                    // failure because test already exists
-                  sql!(CREATE TABLE test(value);)]
+                    sql!(CREATE TABLE test(value);),
+                ]
            }
        }
-       
+
        let tempdir = TempDir::new("DbTests").unwrap();
        let _bad_db = open_db::<BadDB>(tempdir.path(), &util::channel::ReleaseChannel::Dev).await;
    }
-    
+
    /// Test that DB exists but corrupted (causing recreate)
    #[gpui::test]
    async fn test_db_corruption() {
        enum CorruptedDB {}
-        
+
        impl Domain for CorruptedDB {
            fn name() -> &'static str {
                "db_tests"
            }
-            
+
            fn migrations() -> &'static [&'static str] {
                &[sql!(CREATE TABLE test(value);)]
            }
        }
-        
+
        enum GoodDB {}
-        
+
        impl Domain for GoodDB {
            fn name() -> &'static str {
                "db_tests" //Notice same name
            }
-            
+
            fn migrations() -> &'static [&'static str] {
                &[sql!(CREATE TABLE test2(value);)] //But different migration
            }
        }
-       
+
        let tempdir = TempDir::new("DbTests").unwrap();
        {
-            let corrupt_db = open_db::<CorruptedDB>(tempdir.path(), &util::channel::ReleaseChannel::Dev).await;
+            let corrupt_db =
+                open_db::<CorruptedDB>(tempdir.path(), &util::channel::ReleaseChannel::Dev).await;
            assert!(corrupt_db.persistent());
        }
-        
-        
+
        let good_db = open_db::<GoodDB>(tempdir.path(), &util::channel::ReleaseChannel::Dev).await;
-        assert!(good_db.select_row::<usize>("SELECT * FROM test2").unwrap()().unwrap().is_none());
-        
-        let mut corrupted_backup_dir = fs::read_dir(
-            tempdir.path()
-        ).unwrap().find(|entry| {
-            !entry.as_ref().unwrap().file_name().to_str().unwrap().starts_with("0")
-        }
-        ).unwrap().unwrap().path();
+        assert!(
+            good_db.select_row::<usize>("SELECT * FROM test2").unwrap()()
+                .unwrap()
+                .is_none()
+        );
+
+        let mut corrupted_backup_dir = fs::read_dir(tempdir.path())
+            .unwrap()
+            .find(|entry| {
+                !entry
+                    .as_ref()
+                    .unwrap()
+                    .file_name()
+                    .to_str()
+                    .unwrap()
+                    .starts_with("0")
+            })
+            .unwrap()
+            .unwrap()
+            .path();
        corrupted_backup_dir.push(DB_FILE_NAME);
-        
-        dbg!(&corrupted_backup_dir);
-        
+
        let backup = Connection::open_file(&corrupted_backup_dir.to_string_lossy());
-        assert!(backup.select_row::<usize>("SELECT * FROM test").unwrap()().unwrap().is_none());
+        assert!(backup.select_row::<usize>("SELECT * FROM test").unwrap()()
+            .unwrap()
+            .is_none());
    }
-    
+
    /// Test that DB exists but corrupted (causing recreate)
    #[gpui::test]
    async fn test_simultaneous_db_corruption() {
        enum CorruptedDB {}
-        
+
        impl Domain for CorruptedDB {
            fn name() -> &'static str {
                "db_tests"
            }
-            
+
            fn migrations() -> &'static [&'static str] {
                &[sql!(CREATE TABLE test(value);)]
            }
        }
-        
+
        enum GoodDB {}
-        
+
        impl Domain for GoodDB {
            fn name() -> &'static str {
                "db_tests" //Notice same name
            }
-            
+
            fn migrations() -> &'static [&'static str] {
                &[sql!(CREATE TABLE test2(value);)] //But different migration
            }
        }
-       
+
        let tempdir = TempDir::new("DbTests").unwrap();
        {
            // Setup the bad database
-            let corrupt_db = open_db::<CorruptedDB>(tempdir.path(), &util::channel::ReleaseChannel::Dev).await;
+            let corrupt_db =
+                open_db::<CorruptedDB>(tempdir.path(), &util::channel::ReleaseChannel::Dev).await;
            assert!(corrupt_db.persistent());
        }
-        
+
        // Try to connect to it a bunch of times at once
        let mut guards = vec![];
        for _ in 0..10 {
            let tmp_path = tempdir.path().to_path_buf();
            let guard = thread::spawn(move || {
-                let good_db = smol::block_on(open_db::<GoodDB>(tmp_path.as_path(), &util::channel::ReleaseChannel::Dev));
-                assert!(good_db.select_row::<usize>("SELECT * FROM test2").unwrap()().unwrap().is_none());
+                let good_db = smol::block_on(open_db::<GoodDB>(
+                    tmp_path.as_path(),
+                    &util::channel::ReleaseChannel::Dev,
+                ));
+                assert!(
+                    good_db.select_row::<usize>("SELECT * FROM test2").unwrap()()
+                        .unwrap()
+                        .is_none()
+                );
            });
-            
+
            guards.push(guard);
-        
        }
-        
-       for guard in guards.into_iter() {
-           assert!(guard.join().is_ok());
-       }
+
+        for guard in guards.into_iter() {
+            assert!(guard.join().is_ok());
+        }
    }
 }
--- a/crates/db/src/query.rs
+++ b/crates/db/src/query.rs
@@ -80,7 +80,7 @@ macro_rules! query {

            let sql_stmt = $crate::sqlez_macros::sql!($($sql)+);

-            self.select::<$return_type>(sql_stmt)?(())
+            self.select::<$return_type>(sql_stmt)?()
                .context(::std::format!(
                    "Error in {}, select_row failed to execute or parse for: {}",
                    ::std::stringify!($id),
@@ -95,7 +95,7 @@ macro_rules! query {
            self.write(|connection| {
                let sql_stmt = $crate::sqlez_macros::sql!($($sql)+);

-                connection.select::<$return_type>(sql_stmt)?(())
+                connection.select::<$return_type>(sql_stmt)?()
                    .context(::std::format!(
                        "Error in {}, select_row failed to execute or parse for: {}",
                        ::std::stringify!($id),
--- a/crates/diagnostics/Cargo.toml
+++ b/crates/diagnostics/Cargo.toml
@@ -2,6 +2,7 @@
 name = "diagnostics"
 version = "0.1.0"
 edition = "2021"
+publish = false

 [lib]
 path = "src/diagnostics.rs"
--- a/crates/diagnostics/src/diagnostics.rs
+++ b/crates/diagnostics/src/diagnostics.rs
@@ -90,14 +90,11 @@ impl View for ProjectDiagnosticsEditor {
    fn render(&mut self, cx: &mut RenderContext<Self>) -> ElementBox {
        if self.path_states.is_empty() {
            let theme = &cx.global::<Settings>().theme.project_diagnostics;
-            Label::new(
-                "No problems in workspace".to_string(),
-                theme.empty_message.clone(),
-            )
-            .aligned()
-            .contained()
-            .with_style(theme.container)
-            .boxed()
+            Label::new("No problems in workspace", theme.empty_message.clone())
+                .aligned()
+                .contained()
+                .with_style(theme.container)
+                .boxed()
        } else {
            ChildView::new(&self.editor, cx).boxed()
        }
@@ -164,7 +161,7 @@ impl ProjectDiagnosticsEditor {
            editor.set_vertical_scroll_margin(5, cx);
            editor
        });
-        cx.subscribe(&editor, |_, _, event, cx| cx.emit(*event))
+        cx.subscribe(&editor, |_, _, event, cx| cx.emit(event.clone()))
            .detach();

        let project = project_handle.read(cx);
@@ -521,12 +518,8 @@ impl Item for ProjectDiagnosticsEditor {
        )
    }

-    fn project_path(&self, _: &AppContext) -> Option<project::ProjectPath> {
-        None
-    }
-
-    fn project_entry_ids(&self, cx: &AppContext) -> SmallVec<[project::ProjectEntryId; 3]> {
-        self.editor.project_entry_ids(cx)
+    fn for_each_project_item(&self, cx: &AppContext, f: &mut dyn FnMut(usize, &dyn project::Item)) {
+        self.editor.for_each_project_item(cx, f)
    }

    fn is_singleton(&self, _: &AppContext) -> bool {
@@ -575,7 +568,16 @@ impl Item for ProjectDiagnosticsEditor {
        unreachable!()
    }

-    fn to_item_events(event: &Self::Event) -> Vec<ItemEvent> {
+    fn git_diff_recalc(
+        &mut self,
+        project: ModelHandle<Project>,
+        cx: &mut ViewContext<Self>,
+    ) -> Task<Result<()>> {
+        self.editor
+            .update(cx, |editor, cx| editor.git_diff_recalc(project, cx))
+    }
+
+    fn to_item_events(event: &Self::Event) -> SmallVec<[ItemEvent; 2]> {
        Editor::to_item_events(event)
    }

@@ -692,7 +694,7 @@ pub(crate) fn render_summary(
    theme: &theme::ProjectDiagnostics,
 ) -> ElementBox {
    if summary.error_count == 0 && summary.warning_count == 0 {
-        Label::new("No problems".to_string(), text_style.clone()).boxed()
+        Label::new("No problems", text_style.clone()).boxed()
    } else {
        let icon_width = theme.tab_icon_width;
        let icon_spacing = theme.tab_icon_spacing;
--- a/crates/diagnostics/src/items.rs
+++ b/crates/diagnostics/src/items.rs
@@ -178,14 +178,11 @@ impl View for DiagnosticIndicator {

        if in_progress {
            element.add_child(
-                Label::new(
-                    "Checking…".into(),
-                    style.diagnostic_message.default.text.clone(),
-                )
-                .aligned()
-                .contained()
-                .with_margin_left(item_spacing)
-                .boxed(),
+                Label::new("Checking…", style.diagnostic_message.default.text.clone())
+                    .aligned()
+                    .contained()
+                    .with_margin_left(item_spacing)
+                    .boxed(),
            );
        } else if let Some(diagnostic) = &self.current_diagnostic {
            let message_style = style.diagnostic_message.clone();
--- a/crates/drag_and_drop/Cargo.toml
+++ b/crates/drag_and_drop/Cargo.toml
@@ -2,6 +2,7 @@
 name = "drag_and_drop"
 version = "0.1.0"
 edition = "2021"
+publish = false

 [lib]
 path = "src/drag_and_drop.rs"
--- a/crates/editor/Cargo.toml
+++ b/crates/editor/Cargo.toml
@@ -2,6 +2,7 @@
 name = "editor"
 version = "0.1.0"
 edition = "2021"
+publish = false

 [lib]
 path = "src/editor.rs"
@@ -16,7 +17,8 @@ test-support = [
    "project/test-support",
    "util/test-support",
    "workspace/test-support",
-    "tree-sitter-rust"
+    "tree-sitter-rust",
+    "tree-sitter-typescript"
 ]

 [dependencies]
@@ -57,6 +59,7 @@ smol = "1.2"
 tree-sitter-rust = { version = "*", optional = true }
 tree-sitter-html = { version = "*", optional = true }
 tree-sitter-javascript = { version = "*", optional = true }
+tree-sitter-typescript = { git = "https://github.com/tree-sitter/tree-sitter-typescript", rev = "5d20856f34315b068c41edaee2ac8a100081d259", optional = true }

 [dev-dependencies]
 text = { path = "../text", features = ["test-support"] }
@@ -74,4 +77,5 @@ unindent = "0.1.7"
 tree-sitter = "0.20"
 tree-sitter-rust = "0.20"
 tree-sitter-html = "0.19"
+tree-sitter-typescript = { git = "https://github.com/tree-sitter/tree-sitter-typescript", rev = "5d20856f34315b068c41edaee2ac8a100081d259" }
 tree-sitter-javascript = "0.20"
--- a/crates/editor/src/display_map.rs
+++ b/crates/editor/src/display_map.rs
@@ -8,6 +8,7 @@ use block_map::{BlockMap, BlockPoint};
 use collections::{HashMap, HashSet};
 use fold_map::FoldMap;
 use gpui::{
+    color::Color,
    fonts::{FontId, HighlightStyle},
    Entity, ModelContext, ModelHandle,
 };
@@ -23,6 +24,12 @@ pub use block_map::{
    BlockDisposition, BlockId, BlockProperties, BlockStyle, RenderBlock, TransformBlock,
 };

+#[derive(Copy, Clone, Debug, PartialEq, Eq)]
+pub enum FoldStatus {
+    Folded,
+    Foldable,
+}
+
 pub trait ToDisplayPoint {
    fn to_display_point(&self, map: &DisplaySnapshot) -> DisplayPoint;
 }
@@ -212,6 +219,10 @@ impl DisplayMap {
            .update(cx, |map, cx| map.set_font(font_id, font_size, cx))
    }

+    pub fn set_fold_ellipses_color(&mut self, color: Color) -> bool {
+        self.fold_map.set_ellipses_color(color)
+    }
+
    pub fn set_wrap_width(&self, width: Option<f32>, cx: &mut ModelContext<Self>) -> bool {
        self.wrap_map
            .update(cx, |map, cx| map.set_wrap_width(width, cx))
@@ -337,7 +348,7 @@ impl DisplaySnapshot {
            .map(|h| h.text)
    }

-    // Returns text chunks starting at the end of the given display row in reverse until the start of the file
+    /// Returns text chunks starting at the end of the given display row in reverse until the start of the file
    pub fn reverse_text_chunks(&self, display_row: u32) -> impl Iterator<Item = &str> {
        (0..=display_row).into_iter().rev().flat_map(|row| {
            self.blocks_snapshot
@@ -411,6 +422,67 @@ impl DisplaySnapshot {
            })
    }

+    /// Returns an iterator of the start positions of the occurances of `target` in the `self` after `from`
+    /// Stops if `condition` returns false for any of the character position pairs observed.
+    pub fn find_while<'a>(
+        &'a self,
+        from: DisplayPoint,
+        target: &str,
+        condition: impl FnMut(char, DisplayPoint) -> bool + 'a,
+    ) -> impl Iterator<Item = DisplayPoint> + 'a {
+        Self::find_internal(self.chars_at(from), target.chars().collect(), condition)
+    }
+
+    /// Returns an iterator of the end positions of the occurances of `target` in the `self` before `from`
+    /// Stops if `condition` returns false for any of the character position pairs observed.
+    pub fn reverse_find_while<'a>(
+        &'a self,
+        from: DisplayPoint,
+        target: &str,
+        condition: impl FnMut(char, DisplayPoint) -> bool + 'a,
+    ) -> impl Iterator<Item = DisplayPoint> + 'a {
+        Self::find_internal(
+            self.reverse_chars_at(from),
+            target.chars().rev().collect(),
+            condition,
+        )
+    }
+
+    fn find_internal<'a>(
+        iterator: impl Iterator<Item = (char, DisplayPoint)> + 'a,
+        target: Vec<char>,
+        mut condition: impl FnMut(char, DisplayPoint) -> bool + 'a,
+    ) -> impl Iterator<Item = DisplayPoint> + 'a {
+        // List of partial matches with the index of the last seen character in target and the starting point of the match
+        let mut partial_matches: Vec<(usize, DisplayPoint)> = Vec::new();
+        iterator
+            .take_while(move |(ch, point)| condition(*ch, *point))
+            .filter_map(move |(ch, point)| {
+                if Some(&ch) == target.get(0) {
+                    partial_matches.push((0, point));
+                }
+
+                let mut found = None;
+                // Keep partial matches that have the correct next character
+                partial_matches.retain_mut(|(match_position, match_start)| {
+                    if target.get(*match_position) == Some(&ch) {
+                        *match_position += 1;
+                        if *match_position == target.len() {
+                            found = Some(match_start.clone());
+                            // This match is completed. No need to keep tracking it
+                            false
+                        } else {
+                            true
+                        }
+                    } else {
+                        false
+                    }
+                });
+
+                found
+            })
+    }
+
    pub fn column_to_chars(&self, display_row: u32, target: u32) -> u32 {
        let mut count = 0;
        let mut column = 0;
@@ -530,6 +602,59 @@ impl DisplaySnapshot {
        self.blocks_snapshot.longest_row()
    }

+    pub fn fold_for_line(self: &Self, display_row: u32) -> Option<FoldStatus> {
+        if self.is_foldable(display_row) {
+            Some(FoldStatus::Foldable)
+        } else if self.is_line_folded(display_row) {
+            Some(FoldStatus::Folded)
+        } else {
+            None
+        }
+    }
+
+    pub fn is_foldable(self: &Self, row: u32) -> bool {
+        let max_point = self.max_point();
+        if row >= max_point.row() {
+            return false;
+        }
+
+        let (start_indent, is_blank) = self.line_indent(row);
+        if is_blank {
+            return false;
+        }
+
+        for display_row in next_rows(row, self) {
+            let (indent, is_blank) = self.line_indent(display_row);
+            if !is_blank {
+                return indent > start_indent;
+            }
+        }
+
+        return false;
+    }
+
+    pub fn foldable_range(self: &Self, row: u32) -> Option<Range<DisplayPoint>> {
+        let start = DisplayPoint::new(row, self.line_len(row));
+
+        if self.is_foldable(row) && !self.is_line_folded(start.row()) {
+            let (start_indent, _) = self.line_indent(row);
+            let max_point = self.max_point();
+            let mut end = None;
+
+            for row in next_rows(row, self) {
+                let (indent, is_blank) = self.line_indent(row);
+                if !is_blank && indent <= start_indent {
+                    end = Some(DisplayPoint::new(row - 1, self.line_len(row - 1)));
+                    break;
+                }
+            }
+            let end = end.unwrap_or(max_point);
+            Some(start..end)
+        } else {
+            None
+        }
+    }
+
    #[cfg(any(test, feature = "test-support"))]
    pub fn highlight_ranges<Tag: ?Sized + 'static>(
        &self,
@@ -617,6 +742,24 @@ impl ToDisplayPoint for Anchor {
    }
 }

+pub fn next_rows(display_row: u32, display_map: &DisplaySnapshot) -> impl Iterator<Item = u32> {
+    let max_row = display_map.max_point().row();
+    let start_row = display_row + 1;
+    let mut current = None;
+    std::iter::from_fn(move || {
+        if current == None {
+            current = Some(start_row);
+        } else {
+            current = Some(current.unwrap() + 1)
+        }
+        if current.unwrap() > max_row {
+            None
+        } else {
+            current
+        }
+    })
+}
+
 #[cfg(test)]
 pub mod tests {
    use super::*;
@@ -627,7 +770,7 @@ pub mod tests {
    use smol::stream::StreamExt;
    use std::{env, sync::Arc};
    use theme::SyntaxTheme;
-    use util::test::{marked_text_ranges, sample_text};
+    use util::test::{marked_text_offsets, marked_text_ranges, sample_text};
    use Bias::*;

    #[gpui::test(iterations = 100)]
@@ -1106,7 +1249,7 @@ pub mod tests {
            vec![
                ("fn ".to_string(), None),
                ("out".to_string(), Some(Color::blue())),
-                ("…".to_string(), None),
+                ("⋯".to_string(), None),
                ("  fn ".to_string(), Some(Color::red())),
                ("inner".to_string(), Some(Color::blue())),
                ("() {}\n}".to_string(), Some(Color::red())),
@@ -1187,7 +1330,7 @@ pub mod tests {
            cx.update(|cx| syntax_chunks(1..4, &map, &theme, cx)),
            [
                ("out".to_string(), Some(Color::blue())),
-                ("…\n".to_string(), None),
+                ("⋯\n".to_string(), None),
                ("  \nfn ".to_string(), Some(Color::red())),
                ("i\n".to_string(), Some(Color::blue()))
            ]
@@ -1418,6 +1561,32 @@ pub mod tests {
        )
    }

+    #[test]
+    fn test_find_internal() {
+        assert("This is a ˇtest of find internal", "test");
+        assert("Some text ˇaˇaˇaa with repeated characters", "aa");
+
+        fn assert(marked_text: &str, target: &str) {
+            let (text, expected_offsets) = marked_text_offsets(marked_text);
+
+            let chars = text
+                .chars()
+                .enumerate()
+                .map(|(index, ch)| (ch, DisplayPoint::new(0, index as u32)));
+            let target = target.chars();
+
+            assert_eq!(
+                expected_offsets
+                    .into_iter()
+                    .map(|offset| offset as u32)
+                    .collect::<Vec<_>>(),
+                DisplaySnapshot::find_internal(chars, target.collect(), |_, _| true)
+                    .map(|point| point.column())
+                    .collect::<Vec<_>>()
+            )
+        }
+    }
+
    fn syntax_chunks<'a>(
        rows: Range<u32>,
        map: &ModelHandle<DisplayMap>,
--- a/crates/editor/src/display_map/fold_map.rs
+++ b/crates/editor/src/display_map/fold_map.rs
@@ -4,7 +4,7 @@ use crate::{
    ToOffset,
 };
 use collections::BTreeMap;
-use gpui::fonts::HighlightStyle;
+use gpui::{color::Color, fonts::HighlightStyle};
 use language::{Chunk, Edit, Point, TextSummary};
 use parking_lot::Mutex;
 use std::{
@@ -133,6 +133,7 @@ impl<'a> FoldMapWriter<'a> {
            folds: self.0.folds.clone(),
            buffer_snapshot: buffer,
            version: self.0.version.load(SeqCst),
+            ellipses_color: self.0.ellipses_color,
        };
        (snapshot, edits)
    }
@@ -182,6 +183,7 @@ impl<'a> FoldMapWriter<'a> {
            folds: self.0.folds.clone(),
            buffer_snapshot: buffer,
            version: self.0.version.load(SeqCst),
+            ellipses_color: self.0.ellipses_color,
        };
        (snapshot, edits)
    }
@@ -192,6 +194,7 @@ pub struct FoldMap {
    transforms: Mutex<SumTree<Transform>>,
    folds: SumTree<Fold>,
    version: AtomicUsize,
+    ellipses_color: Option<Color>,
 }

 impl FoldMap {
@@ -209,6 +212,7 @@ impl FoldMap {
                },
                &(),
            )),
+            ellipses_color: None,
            version: Default::default(),
        };

@@ -217,6 +221,7 @@ impl FoldMap {
            folds: this.folds.clone(),
            buffer_snapshot: this.buffer.lock().clone(),
            version: this.version.load(SeqCst),
+            ellipses_color: None,
        };
        (this, snapshot)
    }
@@ -233,6 +238,7 @@ impl FoldMap {
            folds: self.folds.clone(),
            buffer_snapshot: self.buffer.lock().clone(),
            version: self.version.load(SeqCst),
+            ellipses_color: self.ellipses_color,
        };
        (snapshot, edits)
    }
@@ -246,6 +252,15 @@ impl FoldMap {
        (FoldMapWriter(self), snapshot, edits)
    }

+    pub fn set_ellipses_color(&mut self, color: Color) -> bool {
+        if self.ellipses_color != Some(color) {
+            self.ellipses_color = Some(color);
+            true
+        } else {
+            false
+        }
+    }
+
    fn check_invariants(&self) {
        if cfg!(test) {
            assert_eq!(
@@ -370,7 +385,7 @@ impl FoldMap {
                    }

                    if fold.end > fold.start {
-                        let output_text = "…";
+                        let output_text = "⋯";
                        new_transforms.push(
                            Transform {
                                summary: TransformSummary {
@@ -477,6 +492,7 @@ pub struct FoldSnapshot {
    folds: SumTree<Fold>,
    buffer_snapshot: MultiBufferSnapshot,
    pub version: usize,
+    pub ellipses_color: Option<Color>,
 }

 impl FoldSnapshot {
@@ -739,6 +755,7 @@ impl FoldSnapshot {
            max_output_offset: range.end.0,
            highlight_endpoints: highlight_endpoints.into_iter().peekable(),
            active_highlights: Default::default(),
+            ellipses_color: self.ellipses_color,
        }
    }

@@ -1029,6 +1046,7 @@ pub struct FoldChunks<'a> {
    max_output_offset: usize,
    highlight_endpoints: Peekable<vec::IntoIter<HighlightEndpoint>>,
    active_highlights: BTreeMap<Option<TypeId>, HighlightStyle>,
+    ellipses_color: Option<Color>,
 }

 impl<'a> Iterator for FoldChunks<'a> {
@@ -1058,7 +1076,10 @@ impl<'a> Iterator for FoldChunks<'a> {
            return Some(Chunk {
                text: output_text,
                syntax_highlight_id: None,
-                highlight_style: None,
+                highlight_style: self.ellipses_color.map(|color| HighlightStyle {
+                    color: Some(color),
+                    ..Default::default()
+                }),
                diagnostic_severity: None,
                is_unnecessary: false,
            });
@@ -1214,7 +1235,7 @@ mod tests {
            Point::new(0, 2)..Point::new(2, 2),
            Point::new(2, 4)..Point::new(4, 1),
        ]);
-        assert_eq!(snapshot2.text(), "aa…cc…eeeee");
+        assert_eq!(snapshot2.text(), "aa⋯cc⋯eeeee");
        assert_eq!(
            edits,
            &[
@@ -1241,7 +1262,7 @@ mod tests {
            buffer.snapshot(cx)
        });
        let (snapshot3, edits) = map.read(buffer_snapshot, subscription.consume().into_inner());
-        assert_eq!(snapshot3.text(), "123a…c123c…eeeee");
+        assert_eq!(snapshot3.text(), "123a⋯c123c⋯eeeee");
        assert_eq!(
            edits,
            &[
@@ -1261,12 +1282,12 @@ mod tests {
            buffer.snapshot(cx)
        });
        let (snapshot4, _) = map.read(buffer_snapshot.clone(), subscription.consume().into_inner());
-        assert_eq!(snapshot4.text(), "123a…c123456eee");
+        assert_eq!(snapshot4.text(), "123a⋯c123456eee");

        let (mut writer, _, _) = map.write(buffer_snapshot.clone(), vec![]);
        writer.unfold(Some(Point::new(0, 4)..Point::new(0, 4)), false);
        let (snapshot5, _) = map.read(buffer_snapshot.clone(), vec![]);
-        assert_eq!(snapshot5.text(), "123a…c123456eee");
+        assert_eq!(snapshot5.text(), "123a⋯c123456eee");

        let (mut writer, _, _) = map.write(buffer_snapshot.clone(), vec![]);
        writer.unfold(Some(Point::new(0, 4)..Point::new(0, 4)), true);
@@ -1287,19 +1308,19 @@ mod tests {
            let (mut writer, _, _) = map.write(buffer_snapshot.clone(), vec![]);
            writer.fold(vec![5..8]);
            let (snapshot, _) = map.read(buffer_snapshot.clone(), vec![]);
-            assert_eq!(snapshot.text(), "abcde…ijkl");
+            assert_eq!(snapshot.text(), "abcde⋯ijkl");

            // Create an fold adjacent to the start of the first fold.
            let (mut writer, _, _) = map.write(buffer_snapshot.clone(), vec![]);
            writer.fold(vec![0..1, 2..5]);
            let (snapshot, _) = map.read(buffer_snapshot.clone(), vec![]);
-            assert_eq!(snapshot.text(), "…b…ijkl");
+            assert_eq!(snapshot.text(), "⋯b⋯ijkl");

            // Create an fold adjacent to the end of the first fold.
            let (mut writer, _, _) = map.write(buffer_snapshot.clone(), vec![]);
            writer.fold(vec![11..11, 8..10]);
            let (snapshot, _) = map.read(buffer_snapshot.clone(), vec![]);
-            assert_eq!(snapshot.text(), "…b…kl");
+            assert_eq!(snapshot.text(), "⋯b⋯kl");
        }

        {
@@ -1309,7 +1330,7 @@ mod tests {
            let (mut writer, _, _) = map.write(buffer_snapshot.clone(), vec![]);
            writer.fold(vec![0..2, 2..5]);
            let (snapshot, _) = map.read(buffer_snapshot, vec![]);
-            assert_eq!(snapshot.text(), "…fghijkl");
+            assert_eq!(snapshot.text(), "⋯fghijkl");

            // Edit within one of the folds.
            let buffer_snapshot = buffer.update(cx, |buffer, cx| {
@@ -1317,7 +1338,7 @@ mod tests {
                buffer.snapshot(cx)
            });
            let (snapshot, _) = map.read(buffer_snapshot, subscription.consume().into_inner());
-            assert_eq!(snapshot.text(), "12345…fghijkl");
+            assert_eq!(snapshot.text(), "12345⋯fghijkl");
        }
    }

@@ -1334,7 +1355,7 @@ mod tests {
            Point::new(3, 1)..Point::new(4, 1),
        ]);
        let (snapshot, _) = map.read(buffer_snapshot, vec![]);
-        assert_eq!(snapshot.text(), "aa…eeeee");
+        assert_eq!(snapshot.text(), "aa⋯eeeee");
    }

    #[gpui::test]
@@ -1351,14 +1372,14 @@ mod tests {
            Point::new(3, 1)..Point::new(4, 1),
        ]);
        let (snapshot, _) = map.read(buffer_snapshot, vec![]);
-        assert_eq!(snapshot.text(), "aa…cccc\nd…eeeee");
+        assert_eq!(snapshot.text(), "aa⋯cccc\nd⋯eeeee");

        let buffer_snapshot = buffer.update(cx, |buffer, cx| {
            buffer.edit([(Point::new(2, 2)..Point::new(3, 1), "")], None, cx);
            buffer.snapshot(cx)
        });
        let (snapshot, _) = map.read(buffer_snapshot, subscription.consume().into_inner());
-        assert_eq!(snapshot.text(), "aa…eeeee");
+        assert_eq!(snapshot.text(), "aa⋯eeeee");
    }

    #[gpui::test]
@@ -1450,7 +1471,7 @@ mod tests {

            let mut expected_text: String = buffer_snapshot.text().to_string();
            for fold_range in map.merged_fold_ranges().into_iter().rev() {
-                expected_text.replace_range(fold_range.start..fold_range.end, "…");
+                expected_text.replace_range(fold_range.start..fold_range.end, "⋯");
            }

            assert_eq!(snapshot.text(), expected_text);
@@ -1655,7 +1676,7 @@ mod tests {
        ]);

        let (snapshot, _) = map.read(buffer_snapshot, vec![]);
-        assert_eq!(snapshot.text(), "aa…cccc\nd…eeeee\nffffff\n");
+        assert_eq!(snapshot.text(), "aa⋯cccc\nd⋯eeeee\nffffff\n");
        assert_eq!(
            snapshot.buffer_rows(0).collect::<Vec<_>>(),
            [Some(0), Some(3), Some(5), Some(6)]
--- a/crates/editor/src/editor.rs
+++ b/crates/editor/src/editor.rs
--- a/crates/editor/src/editor_tests.rs
+++ b/crates/editor/src/editor_tests.rs
--- a/crates/editor/src/element.rs
+++ b/crates/editor/src/element.rs
@@ -4,17 +4,17 @@ use super::{
    ToPoint, MAX_LINE_LEN,
 };
 use crate::{
-    display_map::{BlockStyle, DisplaySnapshot, TransformBlock},
+    display_map::{BlockStyle, DisplaySnapshot, FoldStatus, TransformBlock},
    git::{diff_hunk_to_display, DisplayDiffHunk},
    hover_popover::{
-        HoverAt, HOVER_POPOVER_GAP, MIN_POPOVER_CHARACTER_WIDTH, MIN_POPOVER_LINE_HEIGHT,
+        HideHover, HoverAt, HOVER_POPOVER_GAP, MIN_POPOVER_CHARACTER_WIDTH, MIN_POPOVER_LINE_HEIGHT,
    },
    link_go_to_definition::{
        GoToFetchedDefinition, GoToFetchedTypeDefinition, UpdateGoToDefinitionLink,
    },
    mouse_context_menu::DeployMouseContextMenu,
    scroll::actions::Scroll,
-    EditorStyle,
+    EditorStyle, GutterHover, UnfoldAt,
 };
 use clock::ReplicaId;
 use collections::{BTreeMap, HashMap};
@@ -48,6 +48,9 @@ use std::{
    ops::{DerefMut, Range},
    sync::Arc,
 };
+use workspace::item::Item;
+
+enum FoldMarkers {}

 struct SelectionLayout {
    head: DisplayPoint,
@@ -114,6 +117,7 @@ impl EditorElement {
    fn attach_mouse_handlers(
        view: &WeakViewHandle<Editor>,
        position_map: &Arc<PositionMap>,
+        has_popovers: bool,
        visible_bounds: RectF,
        text_bounds: RectF,
        gutter_bounds: RectF,
@@ -190,6 +194,11 @@ impl EditorElement {
                        }
                    }
                })
+                .on_move_out(move |_, cx| {
+                    if has_popovers {
+                        cx.dispatch_action(HideHover);
+                    }
+                })
                .on_scroll({
                    let position_map = position_map.clone();
                    move |e, cx| {
@@ -206,6 +215,17 @@ impl EditorElement {
                    }
                }),
        );
+
+        enum GutterHandlers {}
+        cx.scene.push_mouse_region(
+            MouseRegion::new::<GutterHandlers>(view.id(), view.id() + 1, gutter_bounds).on_hover(
+                |hover, cx| {
+                    cx.dispatch_action(GutterHover {
+                        hovered: hover.started,
+                    })
+                },
+            ),
+        )
    }

    fn mouse_down(
@@ -394,16 +414,7 @@ impl EditorElement {
    ) -> bool {
        // This will be handled more correctly once https://github.com/zed-industries/zed/issues/1218 is completed
        // Don't trigger hover popover if mouse is hovering over context menu
-        let point = if text_bounds.contains_point(position) {
-            let (point, target_point) = position_map.point_for_position(text_bounds, position);
-            if point == target_point {
-                Some(point)
-            } else {
-                None
-            }
-        } else {
-            None
-        };
+        let point = position_to_display_point(position, text_bounds, position_map);

        cx.dispatch_action(UpdateGoToDefinitionLink {
            point,
@@ -412,6 +423,7 @@ impl EditorElement {
        });

        cx.dispatch_action(HoverAt { point });
+
        true
    }

@@ -563,12 +575,25 @@ impl EditorElement {
        }

        if let Some((row, indicator)) = layout.code_actions_indicator.as_mut() {
-            let mut x = bounds.width() - layout.gutter_padding;
+            let mut x = 0.;
            let mut y = *row as f32 * line_height - scroll_top;
            x += ((layout.gutter_padding + layout.gutter_margin) - indicator.size().x()) / 2.;
            y += (line_height - indicator.size().y()) / 2.;
            indicator.paint(bounds.origin() + vec2f(x, y), visible_bounds, cx);
        }
+
+        layout.fold_indicators.as_mut().map(|fold_indicators| {
+            for (line, fold_indicator) in fold_indicators.iter_mut() {
+                let mut x = bounds.width() - layout.gutter_padding;
+                let mut y = *line as f32 * line_height - scroll_top;
+
+                x += ((layout.gutter_padding + layout.gutter_margin) - fold_indicator.size().x())
+                    / 2.;
+                y += (line_height - fold_indicator.size().y()) / 2.;
+
+                fold_indicator.paint(bounds.origin() + vec2f(x, y), visible_bounds, cx);
+            }
+        });
    }

    fn paint_diff_hunks(bounds: RectF, layout: &mut LayoutState, cx: &mut PaintContext) {
@@ -670,6 +695,7 @@ impl EditorElement {
        let max_glyph_width = layout.position_map.em_width;
        let scroll_left = scroll_position.x() * max_glyph_width;
        let content_origin = bounds.origin() + vec2f(layout.gutter_margin, 0.);
+        let line_end_overshoot = 0.15 * layout.position_map.line_height;

        cx.scene.push_layer(Some(bounds));

@@ -682,12 +708,54 @@ impl EditorElement {
            },
        });

+        let fold_corner_radius =
+            self.style.folds.ellipses.corner_radius_factor * layout.position_map.line_height;
+        for (id, range, color) in layout.fold_ranges.iter() {
+            self.paint_highlighted_range(
+                range.clone(),
+                *color,
+                fold_corner_radius,
+                fold_corner_radius * 2.,
+                layout,
+                content_origin,
+                scroll_top,
+                scroll_left,
+                bounds,
+                cx,
+            );
+
+            for bound in range_to_bounds(
+                &range,
+                content_origin,
+                scroll_left,
+                scroll_top,
+                &layout.visible_display_row_range,
+                line_end_overshoot,
+                &layout.position_map,
+            ) {
+                cx.scene.push_cursor_region(CursorRegion {
+                    bounds: bound,
+                    style: CursorStyle::PointingHand,
+                });
+
+                let display_row = range.start.row();
+                cx.scene.push_mouse_region(
+                    MouseRegion::new::<FoldMarkers>(self.view.id(), *id as usize, bound)
+                        .on_click(MouseButton::Left, move |_, cx| {
+                            cx.dispatch_action(UnfoldAt { display_row })
+                        })
+                        .with_notify_on_hover(true)
+                        .with_notify_on_click(true),
+                )
+            }
+        }
+
        for (range, color) in &layout.highlighted_ranges {
            self.paint_highlighted_range(
                range.clone(),
                *color,
                0.,
-                0.15 * layout.position_map.line_height,
+                line_end_overshoot,
                layout,
                content_origin,
                scroll_top,
@@ -698,9 +766,10 @@ impl EditorElement {
        }

        let mut cursors = SmallVec::<[Cursor; 32]>::new();
+        let corner_radius = 0.15 * layout.position_map.line_height;
+
        for (replica_id, selections) in &layout.selections {
            let selection_style = style.replica_selection_style(*replica_id);
-            let corner_radius = 0.15 * layout.position_map.line_height;

            for selection in selections {
                self.paint_highlighted_range(
@@ -1112,6 +1181,24 @@ impl EditorElement {
            .width()
    }

+    fn get_fold_indicators(
+        &self,
+        is_singleton: bool,
+        display_rows: Range<u32>,
+        snapshot: &EditorSnapshot,
+    ) -> Option<Vec<(u32, FoldStatus)>> {
+        is_singleton.then(|| {
+            display_rows
+                .into_iter()
+                .filter_map(|display_row| {
+                    snapshot
+                        .fold_for_line(display_row)
+                        .map(|fold_status| (display_row, fold_status))
+                })
+                .collect()
+        })
+    }
+
    //Folds contained in a hunk are ignored apart from shrinking visual size
    //If a fold contains any hunks then that fold line is marked as modified
    fn layout_git_gutters(
@@ -1432,7 +1519,7 @@ impl EditorElement {
                    } else {
                        let text_style = self.style.text.clone();
                        Flex::row()
-                            .with_child(Label::new("…".to_string(), text_style).boxed())
+                            .with_child(Label::new("⋯", text_style).boxed())
                            .with_children(jump_icon)
                            .contained()
                            .with_padding_left(gutter_padding)
@@ -1528,15 +1615,14 @@ impl Element for EditorElement {
        let snapshot = self.update_view(cx.app, |view, cx| {
            view.set_visible_line_count(size.y() / line_height);

+            let editor_width = text_width - gutter_margin - overscroll.x() - em_width;
            let wrap_width = match view.soft_wrap_mode(cx) {
-                SoftWrap::None => Some((MAX_LINE_LEN / 2) as f32 * em_advance),
-                SoftWrap::EditorWidth => {
-                    Some(text_width - gutter_margin - overscroll.x() - em_width)
-                }
-                SoftWrap::Column(column) => Some(column as f32 * em_advance),
+                SoftWrap::None => (MAX_LINE_LEN / 2) as f32 * em_advance,
+                SoftWrap::EditorWidth => editor_width,
+                SoftWrap::Column(column) => editor_width.min(column as f32 * em_advance),
            };

-            if view.set_wrap_width(wrap_width, cx) {
+            if view.set_wrap_width(Some(wrap_width), cx) {
                view.snapshot(cx)
            } else {
                snapshot
@@ -1601,9 +1687,13 @@ impl Element for EditorElement {
        let mut active_rows = BTreeMap::new();
        let mut highlighted_rows = None;
        let mut highlighted_ranges = Vec::new();
+        let mut fold_ranges = Vec::new();
        let mut show_scrollbars = false;
        let mut include_root = false;
+        let mut is_singleton = false;
        self.update_view(cx.app, |view, cx| {
+            is_singleton = view.is_singleton(cx);
+
            let display_map = view.display_map.update(cx, |map, cx| map.snapshot(cx));

            highlighted_rows = view.highlighted_rows();
@@ -1611,6 +1701,19 @@ impl Element for EditorElement {
            highlighted_ranges =
                view.background_highlights_in_range(start_anchor..end_anchor, &display_map, theme);

+            fold_ranges.extend(
+                snapshot
+                    .folds_in_range(start_anchor..end_anchor)
+                    .map(|anchor| {
+                        let start = anchor.start.to_point(&snapshot.buffer_snapshot);
+                        (
+                            start.row,
+                            start.to_display_point(&snapshot.display_snapshot)
+                                ..anchor.end.to_display_point(&snapshot),
+                        )
+                    }),
+            );
+
            let mut remote_selections = HashMap::default();
            for (replica_id, line_mode, cursor_shape, selection) in display_map
                .buffer_snapshot
@@ -1679,11 +1782,28 @@ impl Element for EditorElement {
                .unwrap_or_default()
        });

+        let fold_ranges: Vec<(BufferRow, Range<DisplayPoint>, Color)> = fold_ranges
+            .into_iter()
+            .map(|(id, fold)| {
+                let color = self
+                    .style
+                    .folds
+                    .ellipses
+                    .background
+                    .style_for(&mut cx.mouse_state::<FoldMarkers>(id as usize), false)
+                    .color;
+
+                (id, fold, color)
+            })
+            .collect();
+
        let line_number_layouts =
            self.layout_line_numbers(start_row..end_row, &active_rows, &snapshot, cx);

        let display_hunks = self.layout_git_gutters(start_row..end_row, &snapshot);

+        let folds = self.get_fold_indicators(is_singleton, start_row..end_row, &snapshot);
+
        let scrollbar_row_range = scroll_position.y()..(scroll_position.y() + height_in_lines);

        let mut max_visible_line_width = 0.0;
@@ -1750,7 +1870,7 @@ impl Element for EditorElement {
        let mut code_actions_indicator = None;
        let mut hover = None;
        let mut mode = EditorMode::Full;
-        cx.render(&self.view.upgrade(cx).unwrap(), |view, cx| {
+        let mut fold_indicators = cx.render(&self.view.upgrade(cx).unwrap(), |view, cx| {
            let newest_selection_head = view
                .selections
                .newest::<usize>(cx)
@@ -1764,14 +1884,26 @@ impl Element for EditorElement {
                        view.render_context_menu(newest_selection_head, style.clone(), cx);
                }

+                let active = matches!(view.context_menu, Some(crate::ContextMenu::CodeActions(_)));
+
                code_actions_indicator = view
-                    .render_code_actions_indicator(&style, cx)
+                    .render_code_actions_indicator(&style, active, cx)
                    .map(|indicator| (newest_selection_head.row(), indicator));
            }

            let visible_rows = start_row..start_row + line_layouts.len() as u32;
            hover = view.hover_state.render(&snapshot, &style, visible_rows, cx);
            mode = view.mode;
+
+            view.render_fold_indicators(
+                folds,
+                &active_rows,
+                &style,
+                view.gutter_hovered,
+                line_height,
+                gutter_margin,
+                cx,
+            )
        });

        if let Some((_, context_menu)) = context_menu.as_mut() {
@@ -1797,6 +1929,18 @@ impl Element for EditorElement {
            );
        }

+        fold_indicators.as_mut().map(|fold_indicators| {
+            for (_, indicator) in fold_indicators.iter_mut() {
+                indicator.layout(
+                    SizeConstraint::strict_along(
+                        Axis::Vertical,
+                        line_height * style.code_actions.vertical_scale,
+                    ),
+                    cx,
+                );
+            }
+        });
+
        if let Some((_, hover_popovers)) = hover.as_mut() {
            for hover_popover in hover_popovers.iter_mut() {
                hover_popover.layout(
@@ -1840,12 +1984,14 @@ impl Element for EditorElement {
                active_rows,
                highlighted_rows,
                highlighted_ranges,
+                fold_ranges,
                line_number_layouts,
                display_hunks,
                blocks,
                selections,
                context_menu,
                code_actions_indicator,
+                fold_indicators,
                hover_popovers: hover,
            },
        )
@@ -1870,6 +2016,7 @@ impl Element for EditorElement {
        Self::attach_mouse_handlers(
            &self.view,
            &layout.position_map,
+            layout.hover_popovers.is_some(),
            visible_bounds,
            text_bounds,
            gutter_bounds,
@@ -1952,6 +2099,8 @@ impl Element for EditorElement {
    }
 }

+type BufferRow = u32;
+
 pub struct LayoutState {
    position_map: Arc<PositionMap>,
    gutter_size: Vector2F,
@@ -1966,6 +2115,7 @@ pub struct LayoutState {
    display_hunks: Vec<DisplayDiffHunk>,
    blocks: Vec<BlockLayout>,
    highlighted_ranges: Vec<(Range<DisplayPoint>, Color)>,
+    fold_ranges: Vec<(BufferRow, Range<DisplayPoint>, Color)>,
    selections: Vec<(ReplicaId, Vec<SelectionLayout>)>,
    scrollbar_row_range: Range<f32>,
    show_scrollbars: bool,
@@ -1973,6 +2123,7 @@ pub struct LayoutState {
    context_menu: Option<(DisplayPoint, ElementBox)>,
    code_actions_indicator: Option<(u32, ElementBox)>,
    hover_popovers: Option<(DisplayPoint, Vec<ElementBox>)>,
+    fold_indicators: Option<Vec<(u32, ElementBox)>>,
 }

 pub struct PositionMap {
@@ -2271,6 +2422,75 @@ impl HighlightedRange {
    }
 }

+pub fn position_to_display_point(
+    position: Vector2F,
+    text_bounds: RectF,
+    position_map: &PositionMap,
+) -> Option<DisplayPoint> {
+    if text_bounds.contains_point(position) {
+        let (point, target_point) = position_map.point_for_position(text_bounds, position);
+        if point == target_point {
+            Some(point)
+        } else {
+            None
+        }
+    } else {
+        None
+    }
+}
+
+pub fn range_to_bounds(
+    range: &Range<DisplayPoint>,
+    content_origin: Vector2F,
+    scroll_left: f32,
+    scroll_top: f32,
+    visible_row_range: &Range<u32>,
+    line_end_overshoot: f32,
+    position_map: &PositionMap,
+) -> impl Iterator<Item = RectF> {
+    let mut bounds: SmallVec<[RectF; 1]> = SmallVec::new();
+
+    if range.start == range.end {
+        return bounds.into_iter();
+    }
+
+    let start_row = visible_row_range.start;
+    let end_row = visible_row_range.end;
+
+    let row_range = if range.end.column() == 0 {
+        cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
+    } else {
+        cmp::max(range.start.row(), start_row)..cmp::min(range.end.row() + 1, end_row)
+    };
+
+    let first_y =
+        content_origin.y() + row_range.start as f32 * position_map.line_height - scroll_top;
+
+    for (idx, row) in row_range.enumerate() {
+        let line_layout = &position_map.line_layouts[(row - start_row) as usize];
+
+        let start_x = if row == range.start.row() {
+            content_origin.x() + line_layout.x_for_index(range.start.column() as usize)
+                - scroll_left
+        } else {
+            content_origin.x() - scroll_left
+        };
+
+        let end_x = if row == range.end.row() {
+            content_origin.x() + line_layout.x_for_index(range.end.column() as usize) - scroll_left
+        } else {
+            content_origin.x() + line_layout.width() + line_end_overshoot - scroll_left
+        };
+
+        bounds.push(RectF::from_points(
+            vec2f(start_x, first_y + position_map.line_height * idx as f32),
+            vec2f(end_x, first_y + position_map.line_height * (idx + 1) as f32),
+        ))
+    }
+
+    bounds.into_iter()
+}
+
 pub fn scale_vertical_mouse_autoscroll_delta(delta: f32) -> f32 {
    delta.powf(1.5) / 100.0
 }
--- a/crates/editor/src/highlight_matching_bracket.rs
+++ b/crates/editor/src/highlight_matching_bracket.rs
@@ -17,7 +17,7 @@ pub fn refresh_matching_bracket_highlights(editor: &mut Editor, cx: &mut ViewCon
    let snapshot = editor.snapshot(cx);
    if let Some((opening_range, closing_range)) = snapshot
        .buffer_snapshot
-        .enclosing_bracket_ranges(head..head)
+        .innermost_enclosing_bracket_ranges(head..head)
    {
        editor.highlight_background::<MatchingBracketHighlight>(
            vec![
@@ -32,11 +32,10 @@ pub fn refresh_matching_bracket_highlights(editor: &mut Editor, cx: &mut ViewCon

 #[cfg(test)]
 mod tests {
-    use crate::test::editor_lsp_test_context::EditorLspTestContext;
-
    use super::*;
+    use crate::test::editor_lsp_test_context::EditorLspTestContext;
    use indoc::indoc;
-    use language::{BracketPair, Language, LanguageConfig};
+    use language::{BracketPair, BracketPairConfig, Language, LanguageConfig};

    #[gpui::test]
    async fn test_matching_bracket_highlights(cx: &mut gpui::TestAppContext) {
@@ -45,20 +44,23 @@ mod tests {
                LanguageConfig {
                    name: "Rust".into(),
                    path_suffixes: vec!["rs".to_string()],
-                    brackets: vec![
-                        BracketPair {
-                            start: "{".to_string(),
-                            end: "}".to_string(),
-                            close: false,
-                            newline: true,
-                        },
-                        BracketPair {
-                            start: "(".to_string(),
-                            end: ")".to_string(),
-                            close: false,
-                            newline: true,
-                        },
-                    ],
+                    brackets: BracketPairConfig {
+                        pairs: vec![
+                            BracketPair {
+                                start: "{".to_string(),
+                                end: "}".to_string(),
+                                close: false,
+                                newline: true,
+                            },
+                            BracketPair {
+                                start: "(".to_string(),
+                                end: ")".to_string(),
+                                close: false,
+                                newline: true,
+                            },
+                        ],
+                        ..Default::default()
+                    },
                    ..Default::default()
                },
                Some(tree_sitter_rust::language()),
--- a/crates/editor/src/hover_popover.rs
+++ b/crates/editor/src/hover_popover.rs
@@ -29,12 +29,16 @@ pub struct HoverAt {
    pub point: Option<DisplayPoint>,
 }

+#[derive(Copy, Clone, PartialEq)]
+pub struct HideHover;
+
 actions!(editor, [Hover]);
-impl_internal_actions!(editor, [HoverAt]);
+impl_internal_actions!(editor, [HoverAt, HideHover]);

 pub fn init(cx: &mut MutableAppContext) {
    cx.add_action(hover);
    cx.add_action(hover_at);
+    cx.add_action(hide_hover);
 }

 /// Bindable action which uses the most recent selection head to trigger a hover
@@ -50,7 +54,7 @@ pub fn hover_at(editor: &mut Editor, action: &HoverAt, cx: &mut ViewContext<Edit
        if let Some(point) = action.point {
            show_hover(editor, point, false, cx);
        } else {
-            hide_hover(editor, cx);
+            hide_hover(editor, &HideHover, cx);
        }
    }
 }
@@ -58,7 +62,7 @@ pub fn hover_at(editor: &mut Editor, action: &HoverAt, cx: &mut ViewContext<Edit
 /// Hides the type information popup.
 /// Triggered by the `Hover` action when the cursor is not over a symbol or when the
 /// selections changed.
-pub fn hide_hover(editor: &mut Editor, cx: &mut ViewContext<Editor>) -> bool {
+pub fn hide_hover(editor: &mut Editor, _: &HideHover, cx: &mut ViewContext<Editor>) -> bool {
    let did_hide = editor.hover_state.info_popover.take().is_some()
        | editor.hover_state.diagnostic_popover.take().is_some();

@@ -67,6 +71,10 @@ pub fn hide_hover(editor: &mut Editor, cx: &mut ViewContext<Editor>) -> bool {

    editor.clear_background_highlights::<HoverState>(cx);

+    if did_hide {
+        cx.notify();
+    }
+
    did_hide
 }

@@ -121,7 +129,7 @@ fn show_hover(
                // Hover triggered from same location as last time. Don't show again.
                return;
            } else {
-                hide_hover(editor, cx);
+                hide_hover(editor, &HideHover, cx);
            }
        }
    }
@@ -323,7 +331,7 @@ impl InfoPopover {
                if let Some(language) = content
                    .language
                    .clone()
-                    .and_then(|language| project.languages().get_language(&language))
+                    .and_then(|language| project.languages().language_for_name(&language))
                {
                    let runs = language
                        .highlight_text(&content.text.as_str().into(), 0..content.text.len());
--- a/crates/editor/src/items.rs
+++ b/crates/editor/src/items.rs
@@ -1,11 +1,20 @@
+use crate::{
+    display_map::ToDisplayPoint, link_go_to_definition::hide_link_definition,
+    movement::surrounding_word, persistence::DB, scroll::ScrollAnchor, Anchor, Autoscroll, Editor,
+    Event, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, NavigationData, ToPoint as _,
+};
 use anyhow::{anyhow, Context, Result};
-use futures::FutureExt;
+use collections::HashSet;
+use futures::future::try_join_all;
 use gpui::{
    elements::*, geometry::vector::vec2f, AppContext, Entity, ModelHandle, MutableAppContext,
    RenderContext, Subscription, Task, View, ViewContext, ViewHandle, WeakViewHandle,
 };
-use language::{Bias, Buffer, File as _, OffsetRangeExt, Point, SelectionGoal};
-use project::{File, FormatTrigger, Project, ProjectEntryId, ProjectPath};
+use language::{
+    proto::serialize_anchor as serialize_text_anchor, Bias, Buffer, OffsetRangeExt, Point,
+    SelectionGoal,
+};
+use project::{FormatTrigger, Item as _, Project, ProjectPath};
 use rpc::proto::{self, update_view};
 use settings::Settings;
 use smallvec::SmallVec;
@@ -13,97 +22,140 @@ use std::{
    borrow::Cow,
    cmp::{self, Ordering},
    fmt::Write,
+    iter,
    ops::Range,
    path::{Path, PathBuf},
 };
 use text::Selection;
 use util::{ResultExt, TryFutureExt};
+use workspace::item::FollowableItemHandle;
 use workspace::{
    item::{FollowableItem, Item, ItemEvent, ItemHandle, ProjectItem},
    searchable::{Direction, SearchEvent, SearchableItem, SearchableItemHandle},
-    ItemId, ItemNavHistory, Pane, StatusItemView, ToolbarItemLocation, Workspace, WorkspaceId,
-};
-
-use crate::{
-    display_map::ToDisplayPoint, link_go_to_definition::hide_link_definition,
-    movement::surrounding_word, persistence::DB, scroll::ScrollAnchor, Anchor, Autoscroll, Editor,
-    Event, ExcerptId, MultiBuffer, MultiBufferSnapshot, NavigationData, ToPoint as _,
-    FORMAT_TIMEOUT,
+    ItemId, ItemNavHistory, Pane, StatusItemView, ToolbarItemLocation, ViewId, Workspace,
+    WorkspaceId,
 };

 pub const MAX_TAB_TITLE_LEN: usize = 24;

 impl FollowableItem for Editor {
+    fn remote_id(&self) -> Option<ViewId> {
+        self.remote_id
+    }
+
    fn from_state_proto(
        pane: ViewHandle<workspace::Pane>,
        project: ModelHandle<Project>,
+        remote_id: ViewId,
        state: &mut Option<proto::view::Variant>,
        cx: &mut MutableAppContext,
    ) -> Option<Task<Result<ViewHandle<Self>>>> {
-        let state = if matches!(state, Some(proto::view::Variant::Editor(_))) {
-            if let Some(proto::view::Variant::Editor(state)) = state.take() {
-                state
-            } else {
-                unreachable!()
-            }
-        } else {
-            return None;
-        };
+        let Some(proto::view::Variant::Editor(_)) = state else { return None };
+        let Some(proto::view::Variant::Editor(state)) = state.take() else { unreachable!() };

-        let buffer = project.update(cx, |project, cx| {
-            project.open_buffer_by_id(state.buffer_id, cx)
+        let client = project.read(cx).client();
+        let replica_id = project.read(cx).replica_id();
+        let buffer_ids = state
+            .excerpts
+            .iter()
+            .map(|excerpt| excerpt.buffer_id)
+            .collect::<HashSet<_>>();
+        let buffers = project.update(cx, |project, cx| {
+            buffer_ids
+                .iter()
+                .map(|id| project.open_buffer_by_id(*id, cx))
+                .collect::<Vec<_>>()
        });
+
        Some(cx.spawn(|mut cx| async move {
-            let buffer = buffer.await?;
-            let editor = pane
-                .read_with(&cx, |pane, cx| {
-                    pane.items_of_type::<Self>().find(|editor| {
-                        editor.read(cx).buffer.read(cx).as_singleton().as_ref() == Some(&buffer)
-                    })
+            let mut buffers = futures::future::try_join_all(buffers).await?;
+            let editor = pane.read_with(&cx, |pane, cx| {
+                let mut editors = pane.items_of_type::<Self>();
+                editors.find(|editor| {
+                    editor.remote_id(&client, cx) == Some(remote_id)
+                        || state.singleton
+                            && buffers.len() == 1
+                            && editor.read(cx).buffer.read(cx).as_singleton().as_ref()
+                                == Some(&buffers[0])
                })
-                .unwrap_or_else(|| {
-                    pane.update(&mut cx, |_, cx| {
-                        cx.add_view(|cx| Editor::for_buffer(buffer, Some(project), cx))
-                    })
-                });
+            });
+
+            let editor = editor.unwrap_or_else(|| {
+                pane.update(&mut cx, |_, cx| {
+                    let multibuffer = cx.add_model(|cx| {
+                        let mut multibuffer;
+                        if state.singleton && buffers.len() == 1 {
+                            multibuffer = MultiBuffer::singleton(buffers.pop().unwrap(), cx)
+                        } else {
+                            multibuffer = MultiBuffer::new(replica_id);
+                            let mut excerpts = state.excerpts.into_iter().peekable();
+                            while let Some(excerpt) = excerpts.peek() {
+                                let buffer_id = excerpt.buffer_id;
+                                let buffer_excerpts = iter::from_fn(|| {
+                                    let excerpt = excerpts.peek()?;
+                                    (excerpt.buffer_id == buffer_id)
+                                        .then(|| excerpts.next().unwrap())
+                                });
+                                let buffer =
+                                    buffers.iter().find(|b| b.read(cx).remote_id() == buffer_id);
+                                if let Some(buffer) = buffer {
+                                    multibuffer.push_excerpts(
+                                        buffer.clone(),
+                                        buffer_excerpts.filter_map(deserialize_excerpt_range),
+                                        cx,
+                                    );
+                                }
+                            }
+                        };
+
+                        if let Some(title) = &state.title {
+                            multibuffer = multibuffer.with_title(title.clone())
+                        }
+
+                        multibuffer
+                    });
+
+                    cx.add_view(|cx| Editor::for_multibuffer(multibuffer, Some(project), cx))
+                })
+            });
+
            editor.update(&mut cx, |editor, cx| {
-                let excerpt_id;
-                let buffer_id;
-                {
-                    let buffer = editor.buffer.read(cx).read(cx);
-                    let singleton = buffer.as_singleton().unwrap();
-                    excerpt_id = singleton.0.clone();
-                    buffer_id = singleton.1;
-                }
+                editor.remote_id = Some(remote_id);
+                let buffer = editor.buffer.read(cx).read(cx);
                let selections = state
                    .selections
                    .into_iter()
                    .map(|selection| {
-                        deserialize_selection(&excerpt_id, buffer_id, selection)
+                        deserialize_selection(&buffer, selection)
                            .ok_or_else(|| anyhow!("invalid selection"))
                    })
                    .collect::<Result<Vec<_>>>()?;
-                if !selections.is_empty() {
-                    editor.set_selections_from_remote(selections, cx);
+                let pending_selection = state
+                    .pending_selection
+                    .map(|selection| deserialize_selection(&buffer, selection))
+                    .flatten();
+                let scroll_top_anchor = state
+                    .scroll_top_anchor
+                    .and_then(|anchor| deserialize_anchor(&buffer, anchor));
+                drop(buffer);
+
+                if !selections.is_empty() || pending_selection.is_some() {
+                    editor.set_selections_from_remote(selections, pending_selection, cx);
                }

-                if let Some(anchor) = state.scroll_top_anchor {
+                if let Some(scroll_top_anchor) = scroll_top_anchor {
                    editor.set_scroll_anchor_remote(
                        ScrollAnchor {
-                            top_anchor: Anchor {
-                                buffer_id: Some(state.buffer_id as usize),
-                                excerpt_id,
-                                text_anchor: language::proto::deserialize_anchor(anchor)
-                                    .ok_or_else(|| anyhow!("invalid scroll top"))?,
-                            },
+                            top_anchor: scroll_top_anchor,
                            offset: vec2f(state.scroll_x, state.scroll_y),
                        },
                        cx,
                    );
                }

-                Ok::<_, anyhow::Error>(())
+                anyhow::Ok(())
            })?;
+
            Ok(editor)
        }))
    }
@@ -134,13 +186,32 @@ impl FollowableItem for Editor {
    }

    fn to_state_proto(&self, cx: &AppContext) -> Option<proto::view::Variant> {
-        let buffer_id = self.buffer.read(cx).as_singleton()?.read(cx).remote_id();
+        let buffer = self.buffer.read(cx);
        let scroll_anchor = self.scroll_manager.anchor();
+        let excerpts = buffer
+            .read(cx)
+            .excerpts()
+            .map(|(id, buffer, range)| proto::Excerpt {
+                id: id.to_proto(),
+                buffer_id: buffer.remote_id(),
+                context_start: Some(serialize_text_anchor(&range.context.start)),
+                context_end: Some(serialize_text_anchor(&range.context.end)),
+                primary_start: range
+                    .primary
+                    .as_ref()
+                    .map(|range| serialize_text_anchor(&range.start)),
+                primary_end: range
+                    .primary
+                    .as_ref()
+                    .map(|range| serialize_text_anchor(&range.end)),
+            })
+            .collect();
+
        Some(proto::view::Variant::Editor(proto::view::Editor {
-            buffer_id,
-            scroll_top_anchor: Some(language::proto::serialize_anchor(
-                &scroll_anchor.top_anchor.text_anchor,
-            )),
+            singleton: buffer.is_singleton(),
+            title: (!buffer.is_singleton()).then(|| buffer.title(cx).into()),
+            excerpts,
+            scroll_top_anchor: Some(serialize_anchor(&scroll_anchor.top_anchor)),
            scroll_x: scroll_anchor.offset.x(),
            scroll_y: scroll_anchor.offset.y(),
            selections: self
@@ -149,6 +220,11 @@ impl FollowableItem for Editor {
                .iter()
                .map(serialize_selection)
                .collect(),
+            pending_selection: self
+                .selections
+                .pending_anchor()
+                .as_ref()
+                .map(serialize_selection),
        }))
    }

@@ -156,18 +232,43 @@ impl FollowableItem for Editor {
        &self,
        event: &Self::Event,
        update: &mut Option<proto::update_view::Variant>,
-        _: &AppContext,
+        cx: &AppContext,
    ) -> bool {
        let update =
            update.get_or_insert_with(|| proto::update_view::Variant::Editor(Default::default()));

        match update {
            proto::update_view::Variant::Editor(update) => match event {
+                Event::ExcerptsAdded {
+                    buffer,
+                    predecessor,
+                    excerpts,
+                } => {
+                    let buffer_id = buffer.read(cx).remote_id();
+                    let mut excerpts = excerpts.iter();
+                    if let Some((id, range)) = excerpts.next() {
+                        update.inserted_excerpts.push(proto::ExcerptInsertion {
+                            previous_excerpt_id: Some(predecessor.to_proto()),
+                            excerpt: serialize_excerpt(buffer_id, id, range),
+                        });
+                        update.inserted_excerpts.extend(excerpts.map(|(id, range)| {
+                            proto::ExcerptInsertion {
+                                previous_excerpt_id: None,
+                                excerpt: serialize_excerpt(buffer_id, id, range),
+                            }
+                        }))
+                    }
+                    true
+                }
+                Event::ExcerptsRemoved { ids } => {
+                    update
+                        .deleted_excerpts
+                        .extend(ids.iter().map(ExcerptId::to_proto));
+                    true
+                }
                Event::ScrollPositionChanged { .. } => {
                    let scroll_anchor = self.scroll_manager.anchor();
-                    update.scroll_top_anchor = Some(language::proto::serialize_anchor(
-                        &scroll_anchor.top_anchor.text_anchor,
-                    ));
+                    update.scroll_top_anchor = Some(serialize_anchor(&scroll_anchor.top_anchor));
                    update.scroll_x = scroll_anchor.offset.x();
                    update.scroll_y = scroll_anchor.offset.y();
                    true
@@ -177,9 +278,13 @@ impl FollowableItem for Editor {
                        .selections
                        .disjoint_anchors()
                        .iter()
-                        .chain(self.selections.pending_anchor().as_ref())
                        .map(serialize_selection)
                        .collect();
+                    update.pending_selection = self
+                        .selections
+                        .pending_anchor()
+                        .as_ref()
+                        .map(serialize_selection);
                    true
                }
                _ => false,
@@ -189,45 +294,102 @@ impl FollowableItem for Editor {

    fn apply_update_proto(
        &mut self,
+        project: &ModelHandle<Project>,
        message: update_view::Variant,
        cx: &mut ViewContext<Self>,
-    ) -> Result<()> {
-        match message {
-            update_view::Variant::Editor(message) => {
-                let buffer = self.buffer.read(cx);
-                let buffer = buffer.read(cx);
-                let (excerpt_id, buffer_id, _) = buffer.as_singleton().unwrap();
-                let excerpt_id = excerpt_id.clone();
-                drop(buffer);
+    ) -> Task<Result<()>> {
+        let update_view::Variant::Editor(message) = message;
+        let multibuffer = self.buffer.read(cx);
+        let multibuffer = multibuffer.read(cx);

-                let selections = message
-                    .selections
-                    .into_iter()
-                    .filter_map(|selection| {
-                        deserialize_selection(&excerpt_id, buffer_id, selection)
-                    })
-                    .collect::<Vec<_>>();
+        let buffer_ids = message
+            .inserted_excerpts
+            .iter()
+            .filter_map(|insertion| Some(insertion.excerpt.as_ref()?.buffer_id))
+            .collect::<HashSet<_>>();

-                if !selections.is_empty() {
-                    self.set_selections_from_remote(selections, cx);
-                    self.request_autoscroll_remotely(Autoscroll::newest(), cx);
-                } else if let Some(anchor) = message.scroll_top_anchor {
-                    self.set_scroll_anchor_remote(
-                        ScrollAnchor {
-                            top_anchor: Anchor {
-                                buffer_id: Some(buffer_id),
-                                excerpt_id,
-                                text_anchor: language::proto::deserialize_anchor(anchor)
-                                    .ok_or_else(|| anyhow!("invalid scroll top"))?,
-                            },
-                            offset: vec2f(message.scroll_x, message.scroll_y),
-                        },
-                        cx,
-                    );
+        let mut removals = message
+            .deleted_excerpts
+            .into_iter()
+            .map(ExcerptId::from_proto)
+            .collect::<Vec<_>>();
+        removals.sort_by(|a, b| a.cmp(&b, &multibuffer));
+
+        let selections = message
+            .selections
+            .into_iter()
+            .filter_map(|selection| deserialize_selection(&multibuffer, selection))
+            .collect::<Vec<_>>();
+        let pending_selection = message
+            .pending_selection
+            .and_then(|selection| deserialize_selection(&multibuffer, selection));
+
+        let scroll_top_anchor = message
+            .scroll_top_anchor
+            .and_then(|anchor| deserialize_anchor(&multibuffer, anchor));
+        drop(multibuffer);
+
+        let buffers = project.update(cx, |project, cx| {
+            buffer_ids
+                .into_iter()
+                .map(|id| project.open_buffer_by_id(id, cx))
+                .collect::<Vec<_>>()
+        });
+
+        let project = project.clone();
+        cx.spawn(|this, mut cx| async move {
+            let _buffers = try_join_all(buffers).await?;
+            this.update(&mut cx, |this, cx| {
+                this.buffer.update(cx, |multibuffer, cx| {
+                    let mut insertions = message.inserted_excerpts.into_iter().peekable();
+                    while let Some(insertion) = insertions.next() {
+                        let Some(excerpt) = insertion.excerpt else { continue };
+                        let Some(previous_excerpt_id) = insertion.previous_excerpt_id else { continue };
+                        let buffer_id = excerpt.buffer_id;
+                        let Some(buffer) = project.read(cx).buffer_for_id(buffer_id, cx) else { continue };
+
+                        let adjacent_excerpts = iter::from_fn(|| {
+                            let insertion = insertions.peek()?;
+                            if insertion.previous_excerpt_id.is_none()
+                                && insertion.excerpt.as_ref()?.buffer_id == buffer_id
+                            {
+                                insertions.next()?.excerpt
+                            } else {
+                                None
+                            }
+                        });
+
+                        multibuffer.insert_excerpts_with_ids_after(
+                            ExcerptId::from_proto(previous_excerpt_id),
+                            buffer,
+                            [excerpt]
+                                .into_iter()
+                                .chain(adjacent_excerpts)
+                                .filter_map(|excerpt| {
+                                    Some((
+                                        ExcerptId::from_proto(excerpt.id),
+                                        deserialize_excerpt_range(excerpt)?,
+                                    ))
+                                }),
+                            cx,
+                        );
+                    }
+
+                    multibuffer.remove_excerpts(removals, cx);
+                });
+
+                if !selections.is_empty() || pending_selection.is_some() {
+                    this.set_selections_from_remote(selections, pending_selection, cx);
+                    this.request_autoscroll_remotely(Autoscroll::newest(), cx);
+                } else if let Some(anchor) = scroll_top_anchor {
+                    this.set_scroll_anchor_remote(ScrollAnchor {
+                        top_anchor: anchor,
+                        offset: vec2f(message.scroll_x, message.scroll_y)
+                    }, cx);
                }
-            }
-        }
-        Ok(())
+            });
+            Ok(())
+        })
    }

    fn should_unfollow_on_event(event: &Self::Event, _: &AppContext) -> bool {
@@ -240,41 +402,82 @@ impl FollowableItem for Editor {
    }
 }

+fn serialize_excerpt(
+    buffer_id: u64,
+    id: &ExcerptId,
+    range: &ExcerptRange<language::Anchor>,
+) -> Option<proto::Excerpt> {
+    Some(proto::Excerpt {
+        id: id.to_proto(),
+        buffer_id,
+        context_start: Some(serialize_text_anchor(&range.context.start)),
+        context_end: Some(serialize_text_anchor(&range.context.end)),
+        primary_start: range
+            .primary
+            .as_ref()
+            .map(|r| serialize_text_anchor(&r.start)),
+        primary_end: range
+            .primary
+            .as_ref()
+            .map(|r| serialize_text_anchor(&r.end)),
+    })
+}
+
 fn serialize_selection(selection: &Selection<Anchor>) -> proto::Selection {
    proto::Selection {
        id: selection.id as u64,
-        start: Some(language::proto::serialize_anchor(
-            &selection.start.text_anchor,
-        )),
-        end: Some(language::proto::serialize_anchor(
-            &selection.end.text_anchor,
-        )),
+        start: Some(serialize_anchor(&selection.start)),
+        end: Some(serialize_anchor(&selection.end)),
        reversed: selection.reversed,
    }
 }

+fn serialize_anchor(anchor: &Anchor) -> proto::EditorAnchor {
+    proto::EditorAnchor {
+        excerpt_id: anchor.excerpt_id.to_proto(),
+        anchor: Some(serialize_text_anchor(&anchor.text_anchor)),
+    }
+}
+
+fn deserialize_excerpt_range(excerpt: proto::Excerpt) -> Option<ExcerptRange<language::Anchor>> {
+    let context = {
+        let start = language::proto::deserialize_anchor(excerpt.context_start?)?;
+        let end = language::proto::deserialize_anchor(excerpt.context_end?)?;
+        start..end
+    };
+    let primary = excerpt
+        .primary_start
+        .zip(excerpt.primary_end)
+        .and_then(|(start, end)| {
+            let start = language::proto::deserialize_anchor(start)?;
+            let end = language::proto::deserialize_anchor(end)?;
+            Some(start..end)
+        });
+    Some(ExcerptRange { context, primary })
+}
+
 fn deserialize_selection(
-    excerpt_id: &ExcerptId,
-    buffer_id: usize,
+    buffer: &MultiBufferSnapshot,
    selection: proto::Selection,
 ) -> Option<Selection<Anchor>> {
    Some(Selection {
        id: selection.id as usize,
-        start: Anchor {
-            buffer_id: Some(buffer_id),
-            excerpt_id: excerpt_id.clone(),
-            text_anchor: language::proto::deserialize_anchor(selection.start?)?,
-        },
-        end: Anchor {
-            buffer_id: Some(buffer_id),
-            excerpt_id: excerpt_id.clone(),
-            text_anchor: language::proto::deserialize_anchor(selection.end?)?,
-        },
+        start: deserialize_anchor(buffer, selection.start?)?,
+        end: deserialize_anchor(buffer, selection.end?)?,
        reversed: selection.reversed,
        goal: SelectionGoal::None,
    })
 }

+fn deserialize_anchor(buffer: &MultiBufferSnapshot, anchor: proto::EditorAnchor) -> Option<Anchor> {
+    let excerpt_id = ExcerptId::from_proto(anchor.excerpt_id);
+    Some(Anchor {
+        excerpt_id,
+        text_anchor: language::proto::deserialize_anchor(anchor.anchor?)?,
+        buffer_id: buffer.buffer_id_for_excerpt(excerpt_id),
+    })
+}
+
 impl Item for Editor {
    fn navigate(&mut self, data: Box<dyn std::any::Any>, cx: &mut ViewContext<Self>) -> bool {
        if let Ok(data) = data.downcast::<NavigationData>() {
@@ -326,7 +529,7 @@ impl Item for Editor {
    ) -> ElementBox {
        Flex::row()
            .with_child(
-                Label::new(self.title(cx).into(), style.label.clone())
+                Label::new(self.title(cx).to_string(), style.label.clone())
                    .aligned()
                    .boxed(),
            )
@@ -351,22 +554,10 @@ impl Item for Editor {
            .boxed()
    }

-    fn project_path(&self, cx: &AppContext) -> Option<ProjectPath> {
-        let buffer = self.buffer.read(cx).as_singleton()?;
-        let file = buffer.read(cx).file();
-        File::from_dyn(file).map(|file| ProjectPath {
-            worktree_id: file.worktree_id(cx),
-            path: file.path().clone(),
-        })
-    }
-
-    fn project_entry_ids(&self, cx: &AppContext) -> SmallVec<[ProjectEntryId; 3]> {
+    fn for_each_project_item(&self, cx: &AppContext, f: &mut dyn FnMut(usize, &dyn project::Item)) {
        self.buffer
            .read(cx)
-            .files(cx)
-            .into_iter()
-            .filter_map(|file| File::from_dyn(Some(file))?.project_entry_id(cx))
-            .collect()
+            .for_each_buffer(|buffer| f(buffer.id(), buffer.read(cx)));
    }

    fn is_singleton(&self, cx: &AppContext) -> bool {
@@ -403,7 +594,12 @@ impl Item for Editor {
    }

    fn can_save(&self, cx: &AppContext) -> bool {
-        !self.buffer().read(cx).is_singleton() || self.project_path(cx).is_some()
+        let buffer = &self.buffer().read(cx);
+        if let Some(buffer) = buffer.as_singleton() {
+            buffer.read(cx).project_path(cx).is_some()
+        } else {
+            true
+        }
    }

    fn save(
@@ -412,32 +608,12 @@ impl Item for Editor {
        cx: &mut ViewContext<Self>,
    ) -> Task<Result<()>> {
        self.report_event("save editor", cx);
-
-        let buffer = self.buffer().clone();
-        let buffers = buffer.read(cx).all_buffers();
-        let mut timeout = cx.background().timer(FORMAT_TIMEOUT).fuse();
-        let format = project.update(cx, |project, cx| {
-            project.format(buffers, true, FormatTrigger::Save, cx)
-        });
-        cx.spawn(|_, mut cx| async move {
-            let transaction = futures::select_biased! {
-                _ = timeout => {
-                    log::warn!("timed out waiting for formatting");
-                    None
-                }
-                transaction = format.log_err().fuse() => transaction,
-            };
-
-            buffer
-                .update(&mut cx, |buffer, cx| {
-                    if let Some(transaction) = transaction {
-                        if !buffer.is_singleton() {
-                            buffer.push_transaction(&transaction.0);
-                        }
-                    }
-
-                    buffer.save(cx)
-                })
+        let format = self.perform_format(project.clone(), FormatTrigger::Save, cx);
+        let buffers = self.buffer().clone().read(cx).all_buffers();
+        cx.as_mut().spawn(|mut cx| async move {
+            format.await?;
+            project
+                .update(&mut cx, |project, cx| project.save_buffers(buffers, cx))
                .await?;
            Ok(())
        })
@@ -496,8 +672,8 @@ impl Item for Editor {
        Task::ready(Ok(()))
    }

-    fn to_item_events(event: &Self::Event) -> Vec<ItemEvent> {
-        let mut result = Vec::new();
+    fn to_item_events(event: &Self::Event) -> SmallVec<[ItemEvent; 2]> {
+        let mut result = SmallVec::new();
        match event {
            Event::Closed => result.push(ItemEvent::CloseItem),
            Event::Saved | Event::TitleChanged => {
@@ -562,6 +738,7 @@ impl Item for Editor {
    fn added_to_workspace(&mut self, workspace: &mut Workspace, cx: &mut ViewContext<Self>) {
        let workspace_id = workspace.database_id();
        let item_id = cx.view_id();
+        self.workspace_id = Some(workspace_id);

        fn serialize(
            buffer: ModelHandle<Buffer>,
@@ -633,7 +810,11 @@ impl Item for Editor {
                        .context("Project item at stored path was not a buffer")?;

                    Ok(cx.update(|cx| {
-                        cx.add_view(pane, |cx| Editor::for_buffer(buffer, Some(project), cx))
+                        cx.add_view(pane, |cx| {
+                            let mut editor = Editor::for_buffer(buffer, Some(project), cx);
+                            editor.read_scroll_position_from_db(item_id, workspace_id, cx);
+                            editor
+                        })
                    }))
                })
            })
@@ -705,7 +886,7 @@ impl SearchableItem for Editor {
        matches: Vec<Range<Anchor>>,
        cx: &mut ViewContext<Self>,
    ) {
-        self.unfold_ranges([matches[index].clone()], false, cx);
+        self.unfold_ranges([matches[index].clone()], false, true, cx);
        self.change_selections(Some(Autoscroll::fit()), cx, |s| {
            s.select_ranges([matches[index].clone()])
        });
@@ -892,7 +1073,7 @@ impl StatusItemView for CursorPosition {
        active_pane_item: Option<&dyn ItemHandle>,
        cx: &mut ViewContext<Self>,
    ) {
-        if let Some(editor) = active_pane_item.and_then(|item| item.downcast::<Editor>()) {
+        if let Some(editor) = active_pane_item.and_then(|item| item.act_as::<Editor>(cx)) {
            self._observe_active_editor = Some(cx.observe(&editor, Self::update_position));
            self.update_position(editor, cx);
        } else {
@@ -911,7 +1092,7 @@ fn path_for_buffer<'a>(
    cx: &'a AppContext,
 ) -> Option<Cow<'a, Path>> {
    let file = buffer.read(cx).as_singleton()?.read(cx).file()?;
-    path_for_file(file, height, include_filename, cx)
+    path_for_file(file.as_ref(), height, include_filename, cx)
 }

 fn path_for_file<'a>(
@@ -959,6 +1140,7 @@ mod tests {
    use std::{
        path::{Path, PathBuf},
        sync::Arc,
+        time::SystemTime,
    };

    #[gpui::test]
@@ -988,7 +1170,7 @@ mod tests {
            todo!()
        }

-        fn mtime(&self) -> std::time::SystemTime {
+        fn mtime(&self) -> SystemTime {
            todo!()
        }

@@ -1000,17 +1182,6 @@ mod tests {
            todo!()
        }

-        fn save(
-            &self,
-            _: u64,
-            _: language::Rope,
-            _: clock::Global,
-            _: project::LineEnding,
-            _: &mut MutableAppContext,
-        ) -> gpui::Task<anyhow::Result<(clock::Global, String, std::time::SystemTime)>> {
-            todo!()
-        }
-
        fn as_any(&self) -> &dyn std::any::Any {
            todo!()
        }
--- a/crates/editor/src/mouse_context_menu.rs
+++ b/crates/editor/src/mouse_context_menu.rs
@@ -6,7 +6,7 @@ use gpui::{

 use crate::{
    DisplayPoint, Editor, EditorMode, FindAllReferences, GoToDefinition, GoToTypeDefinition,
-    Rename, SelectMode, ToggleCodeActions,
+    Rename, RevealInFinder, SelectMode, ToggleCodeActions,
 };

 #[derive(Clone, PartialEq)]
@@ -52,8 +52,8 @@ pub fn deploy_context_menu(
            AnchorCorner::TopLeft,
            vec![
                ContextMenuItem::item("Rename Symbol", Rename),
-                ContextMenuItem::item("Go To Definition", GoToDefinition),
-                ContextMenuItem::item("Go To Type Definition", GoToTypeDefinition),
+                ContextMenuItem::item("Go to Definition", GoToDefinition),
+                ContextMenuItem::item("Go to Type Definition", GoToTypeDefinition),
                ContextMenuItem::item("Find All References", FindAllReferences),
                ContextMenuItem::item(
                    "Code Actions",
@@ -61,6 +61,8 @@ pub fn deploy_context_menu(
                        deployed_from_indicator: false,
                    },
                ),
+                ContextMenuItem::Separator,
+                ContextMenuItem::item("Reveal in Finder", RevealInFinder),
            ],
            cx,
        );
--- a/crates/editor/src/movement.rs
+++ b/crates/editor/src/movement.rs
@@ -352,6 +352,29 @@ pub fn surrounding_word(map: &DisplaySnapshot, position: DisplayPoint) -> Range<
    start..end
 }

+pub fn split_display_range_by_lines(
+    map: &DisplaySnapshot,
+    range: Range<DisplayPoint>,
+) -> Vec<Range<DisplayPoint>> {
+    let mut result = Vec::new();
+
+    let mut start = range.start;
+    // Loop over all the covered rows until the one containing the range end
+    for row in range.start.row()..range.end.row() {
+        let row_end_column = map.line_len(row);
+        let end = map.clip_point(DisplayPoint::new(row, row_end_column), Bias::Left);
+        if start != end {
+            result.push(start..end);
+        }
+        start = map.clip_point(DisplayPoint::new(row + 1, 0), Bias::Left);
+    }
+
+    // Add the final range from the start of the last end to the original range end.
+    result.push(start..range.end);
+
+    result
+}
+
 #[cfg(test)]
 mod tests {
    use super::*;
--- a/crates/editor/src/multi_buffer.rs
+++ b/crates/editor/src/multi_buffer.rs
--- a/crates/editor/src/persistence.rs
+++ b/crates/editor/src/persistence.rs
@@ -2,9 +2,19 @@ use std::path::PathBuf;

 use db::sqlez_macros::sql;
 use db::{define_connection, query};
+
 use workspace::{ItemId, WorkspaceDb, WorkspaceId};

 define_connection!(
+    // Current schema shape using pseudo-rust syntax:
+    // editors(
+    //   item_id: usize,
+    //   workspace_id: usize,
+    //   path: PathBuf,
+    //   scroll_top_row: usize,
+    //   scroll_vertical_offset: f32,
+    //   scroll_horizontal_offset: f32,
+    // )
    pub static ref DB: EditorDb<WorkspaceDb> =
        &[sql! (
            CREATE TABLE editors(
@@ -15,8 +25,13 @@ define_connection!(
                FOREIGN KEY(workspace_id) REFERENCES workspaces(workspace_id)
                ON DELETE CASCADE
                ON UPDATE CASCADE
-        ) STRICT;
-    )];
+            ) STRICT;
+        ),
+        sql! (
+            ALTER TABLE editors ADD COLUMN scroll_top_row INTEGER NOT NULL DEFAULT 0;
+            ALTER TABLE editors ADD COLUMN scroll_horizontal_offset REAL NOT NULL DEFAULT 0;
+            ALTER TABLE editors ADD COLUMN scroll_vertical_offset REAL NOT NULL DEFAULT 0;
+        )];
 );

 impl EditorDb {
@@ -29,8 +44,40 @@ impl EditorDb {

    query! {
        pub async fn save_path(item_id: ItemId, workspace_id: WorkspaceId, path: PathBuf) -> Result<()> {
-            INSERT OR REPLACE INTO editors(item_id, workspace_id, path)
-            VALUES (?, ?, ?)
+            INSERT INTO editors
+                (item_id, workspace_id, path)
+            VALUES
+                (?1, ?2, ?3)
+            ON CONFLICT DO UPDATE SET
+                item_id = ?1,
+                workspace_id = ?2,
+                path = ?3
+        }
+    }
+
+    // Returns the scroll top row, and offset
+    query! {
+        pub fn get_scroll_position(item_id: ItemId, workspace_id: WorkspaceId) -> Result<Option<(u32, f32, f32)>> {
+            SELECT scroll_top_row, scroll_horizontal_offset, scroll_vertical_offset
+            FROM editors
+            WHERE item_id = ? AND workspace_id = ?
+        }
+    }
+
+    query! {
+        pub async fn save_scroll_position(
+            item_id: ItemId,
+            workspace_id: WorkspaceId,
+            top_row: u32,
+            vertical_offset: f32,
+            horizontal_offset: f32
+        ) -> Result<()> {
+            UPDATE OR IGNORE editors
+            SET
+                scroll_top_row = ?3,
+                scroll_horizontal_offset = ?4,
+                scroll_vertical_offset = ?5
+            WHERE item_id = ?1 AND workspace_id = ?2
        }
    }
 }
--- a/crates/editor/src/scroll.rs
+++ b/crates/editor/src/scroll.rs
@@ -11,11 +11,14 @@ use gpui::{
    geometry::vector::{vec2f, Vector2F},
    Axis, MutableAppContext, Task, ViewContext,
 };
-use language::Bias;
+use language::{Bias, Point};
+use util::ResultExt;
+use workspace::WorkspaceId;

 use crate::{
    display_map::{DisplaySnapshot, ToDisplayPoint},
-    hover_popover::hide_hover,
+    hover_popover::{hide_hover, HideHover},
+    persistence::DB,
    Anchor, DisplayPoint, Editor, EditorMode, Event, MultiBufferSnapshot, ToPoint,
 };

@@ -170,37 +173,68 @@ impl ScrollManager {
        scroll_position: Vector2F,
        map: &DisplaySnapshot,
        local: bool,
+        workspace_id: Option<i64>,
        cx: &mut ViewContext<Editor>,
    ) {
-        let new_anchor = if scroll_position.y() <= 0. {
-            ScrollAnchor {
-                top_anchor: Anchor::min(),
-                offset: scroll_position.max(vec2f(0., 0.)),
-            }
+        let (new_anchor, top_row) = if scroll_position.y() <= 0. {
+            (
+                ScrollAnchor {
+                    top_anchor: Anchor::min(),
+                    offset: scroll_position.max(vec2f(0., 0.)),
+                },
+                0,
+            )
        } else {
-            let scroll_top_buffer_offset =
-                DisplayPoint::new(scroll_position.y() as u32, 0).to_offset(&map, Bias::Right);
+            let scroll_top_buffer_point =
+                DisplayPoint::new(scroll_position.y() as u32, 0).to_point(&map);
            let top_anchor = map
                .buffer_snapshot
-                .anchor_at(scroll_top_buffer_offset, Bias::Right);
+                .anchor_at(scroll_top_buffer_point, Bias::Right);

-            ScrollAnchor {
-                top_anchor,
-                offset: vec2f(
-                    scroll_position.x(),
-                    scroll_position.y() - top_anchor.to_display_point(&map).row() as f32,
-                ),
-            }
+            (
+                ScrollAnchor {
+                    top_anchor,
+                    offset: vec2f(
+                        scroll_position.x(),
+                        scroll_position.y() - top_anchor.to_display_point(&map).row() as f32,
+                    ),
+                },
+                scroll_top_buffer_point.row,
+            )
        };

-        self.set_anchor(new_anchor, local, cx);
+        self.set_anchor(new_anchor, top_row, local, workspace_id, cx);
    }

-    fn set_anchor(&mut self, anchor: ScrollAnchor, local: bool, cx: &mut ViewContext<Editor>) {
+    fn set_anchor(
+        &mut self,
+        anchor: ScrollAnchor,
+        top_row: u32,
+        local: bool,
+        workspace_id: Option<i64>,
+        cx: &mut ViewContext<Editor>,
+    ) {
        self.anchor = anchor;
        cx.emit(Event::ScrollPositionChanged { local });
        self.show_scrollbar(cx);
        self.autoscroll_request.take();
+        if let Some(workspace_id) = workspace_id {
+            let item_id = cx.view_id();
+
+            cx.background()
+                .spawn(async move {
+                    DB.save_scroll_position(
+                        item_id,
+                        workspace_id,
+                        top_row,
+                        anchor.offset.x(),
+                        anchor.offset.y(),
+                    )
+                    .await
+                    .log_err()
+                })
+                .detach()
+        }
        cx.notify();
    }

@@ -273,9 +307,14 @@ impl Editor {
    ) {
        let map = self.display_map.update(cx, |map, cx| map.snapshot(cx));

-        hide_hover(self, cx);
-        self.scroll_manager
-            .set_scroll_position(scroll_position, &map, local, cx);
+        hide_hover(self, &HideHover, cx);
+        self.scroll_manager.set_scroll_position(
+            scroll_position,
+            &map,
+            local,
+            self.workspace_id,
+            cx,
+        );
    }

    pub fn scroll_position(&self, cx: &mut ViewContext<Self>) -> Vector2F {
@@ -284,8 +323,13 @@ impl Editor {
    }

    pub fn set_scroll_anchor(&mut self, scroll_anchor: ScrollAnchor, cx: &mut ViewContext<Self>) {
-        hide_hover(self, cx);
-        self.scroll_manager.set_anchor(scroll_anchor, true, cx);
+        hide_hover(self, &HideHover, cx);
+        let top_row = scroll_anchor
+            .top_anchor
+            .to_point(&self.buffer().read(cx).snapshot(cx))
+            .row;
+        self.scroll_manager
+            .set_anchor(scroll_anchor, top_row, true, self.workspace_id, cx);
    }

    pub(crate) fn set_scroll_anchor_remote(
@@ -293,8 +337,13 @@ impl Editor {
        scroll_anchor: ScrollAnchor,
        cx: &mut ViewContext<Self>,
    ) {
-        hide_hover(self, cx);
-        self.scroll_manager.set_anchor(scroll_anchor, false, cx);
+        hide_hover(self, &HideHover, cx);
+        let top_row = scroll_anchor
+            .top_anchor
+            .to_point(&self.buffer().read(cx).snapshot(cx))
+            .row;
+        self.scroll_manager
+            .set_anchor(scroll_anchor, top_row, false, self.workspace_id, cx);
    }

    pub fn scroll_screen(&mut self, amount: &ScrollAmount, cx: &mut ViewContext<Self>) {
@@ -345,4 +394,25 @@ impl Editor {

        Ordering::Greater
    }
+
+    pub fn read_scroll_position_from_db(
+        &mut self,
+        item_id: usize,
+        workspace_id: WorkspaceId,
+        cx: &mut ViewContext<Editor>,
+    ) {
+        let scroll_position = DB.get_scroll_position(item_id, workspace_id);
+        if let Ok(Some((top_row, x, y))) = scroll_position {
+            let top_anchor = self
+                .buffer()
+                .read(cx)
+                .snapshot(cx)
+                .anchor_at(Point::new(top_row as u32, 0), Bias::Left);
+            let scroll_anchor = ScrollAnchor {
+                offset: Vector2F::new(x, y),
+                top_anchor,
+            };
+            self.set_scroll_anchor(scroll_anchor, cx);
+        }
+    }
 }
--- a/Show More
+++ b/Show More