LLeMbas Desktop 0.4.0, carrying LLeMbas CLI 1.2.0

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

.github/workflows/release.yml

@@ -53,7 +53,9 @@ jobs:
           mkdir dist
           cp src-tauri/target/release/bundle/deb/*.deb src-tauri/target/release/bundle/appimage/*.AppImage dist/
           cd dist
-          { echo "# llembas-desktop $VERSION"; sha256sum -- *; } > SHA256SUMS
+          # Written beside the folder first: inside it, the glob would list SHA256SUMS itself.
+          { echo "# llembas-desktop $VERSION"; sha256sum -- *; } > ../SHA256SUMS
+          mv ../SHA256SUMS .
           cat SHA256SUMS
       - name: Publish the GitHub Release
         env:

.gitignore

@@ -2,4 +2,5 @@
 /src-tauri/target/
 /src-tauri/gen/
 # The bundled LLeMbas CLI: fetched and verified by scripts/fetch-cli.sh, never committed
+/src-tauri/binaries/lembas
 /src-tauri/binaries/lembas-*

CHANGELOG.md

@@ -6,6 +6,58 @@ All notable changes to LLeMbas Desktop. The format follows
 
 ## [Unreleased]
 
+## [0.4.0] — 2026-10-14
+
+Carries LLeMbas CLI 1.2.0, whose agent stays linked before any folder is allowed and follows
+changes to its folders without a restart.
+
+### Added
+
+- **Project folders**: Settings… (in the title bar's and the tray's menu) lists the folders the
+  agent may work in, with *Add folder…* (the system's folder dialog), *Remove*, the most an agent
+  chat may do there, and whether the server may open a terminal. Turning the agent on with no
+  folder chosen opens this page. Changes go through the bundled CLI (`lembas remote`).
+- The server is told it is shown in LLeMbas Desktop and on which computer, so it lists this
+  computer's device as **Local**, first.
+
+### Fixed
+
+- The title bar's menu opens under the button, not in the middle of the window.
+- The agent no longer shows a green light while it may open no folder: the title bar says
+  *agent: no folders*.
+
+## [0.3.0] — 2026-10-14
+
+### Added
+
+- Updates: the app looks for a new release at start and every six hours, shows an **update**
+  button in the title bar when there is one, and installs it (the .deb with the system's password
+  prompt, an AppImage in place) after checking its signature. The menu can also check by hand.
+
+### Fixed
+
+- On Linux the server's page took only the lower half of the window, under an empty title bar
+  area. The title bar is now its fixed height and the page takes the rest; the frame you resize
+  the window by is drawn around both.
+
+## [0.2.0] — 2026-10-14
+
+### Added
+
+- The window is LLeMbas's own: a title bar in the LLeMbas look with the server's address, the
+  agent's state, a menu (the tray's items, plus Reload) and the window buttons. Closing still keeps
+  the app in the tray. The server's pages stay in a view of their own, with no access to the app.
+
+### Fixed
+
+- The app icon is the leaf alone, on a transparent background, instead of a dark square tile.
+- The window shows the app's icon instead of a generic one (the window, the menu entry and the
+  package now share one name, `llembas-desktop`).
+- The package is called `llembas-desktop` (it was `l-le-mbas`) and replaces the old one.
+- The bundled LLeMbas CLI is installed in the app's own directory instead of as `/usr/bin/lembas`,
+  where it could hide, or be hidden by, a `lembas` installed by hand.
+- `SHA256SUMS` on the GitHub release no longer lists itself.
+
 ## [0.1.0] — 2026-10-14
 
 The first alpha, for Linux. It carries LLeMbas CLI 1.1.0.

README.md

@@ -7,8 +7,9 @@ Your [LLeMbas](https://llembas.eu) server in a window of its own, with the agent
 - **The agent, built in.** LLeMbas Desktop carries the [LLeMbas CLI](https://github.com/LLeMbas/LLeMbas-CLI)
   and runs it in the background as this computer's device, so agent chats started on the server
   can work in your projects here, without a terminal.
-- **In the tray**: close the window and the agent keeps running; the tray menu starts and stops it,
+- **Its own window**: a LLeMbas title bar with the agent's state and a menu (start and stop the
-  links the computer, and changes the server.
+  agent, link the computer, reload, change server, quit). Close the window and the agent keeps
+  running in the tray, which has the same menu.
 
 > **Alpha.** Linux first (`.deb` and AppImage, x86-64). Windows and macOS later.
 
@@ -19,21 +20,32 @@ Download the `.deb` or the AppImage from the
 `SHA256SUMS` in the same release.
 
 ```sh
-sudo apt install ./LLeMbas_*_amd64.deb        # Debian, Ubuntu
+sudo apt install ./llembas-desktop_*_amd64.deb      # Debian, Ubuntu (replaces 0.1.0's l-le-mbas)
-chmod +x LLeMbas_*.AppImage && ./LLeMbas_*.AppImage
+chmod +x llembas-desktop_*.AppImage && ./llembas-desktop_*.AppImage
 ```
 
-On GNOME the tray needs the *AppIndicator* extension; without it, closing the window hides the
+On GNOME the tray needs the *AppIndicator* extension; without it, the title bar's menu has
-app, and starting it again brings the window back.
+everything, and starting the app again brings a hidden window back.
+
+## Updates
+
+LLeMbas Desktop looks for a new release when it starts and every six hours. When there is one, an
+**update** button appears in the title bar (and *Install LLeMbas x.y.z…* in its menu; *Check for
+updates…* otherwise). Installing asks for your password to update the `.deb` (an AppImage updates
+itself), then the app starts again. Every package is checked against the release signing key
+built into the app before anything is installed.
 
 ## Use
 
 1. Start LLeMbas and enter your server's address. Sign in there as you would in a browser.
 2. From the tray, **Link this computer**. The approval page opens in the window; approve it.
-3. The agent starts. In the server's new-chat screen, choose this computer for an agent chat.
+3. The agent starts. Choose the folders it may work in (Settings…, *Add folder…*); a new
+   computer allows none until you do.
+4. In the server's Agents tab, start an agent chat on **Local** and pick one of those folders.
 
 The agent is the LLeMbas CLI's `lembas service`, using the CLI's own configuration
-(`~/.config/lembas`). If you also installed the CLI and run `lembas service` yourself, the app sees
+(`~/.config/lembas`). The app's copy of the CLI lives in its own directory
+(`/usr/lib/llembas-desktop/`), not on your `PATH`. If you also installed the CLI and run `lembas service` yourself, the app sees
 it and does not start a second one: they are the same device.
 
 ## Build

lembas-cli.version

@@ -1 +1 @@
-1.1.0
+1.2.0

scripts/fetch-cli.sh

@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
-# Put the LLeMbas CLI that LLeMbas Desktop carries where Tauri's bundler wants it:
+# Put the LLeMbas CLI that LLeMbas Desktop carries where the bundle takes it from:
-#   src-tauri/binaries/lembas-<target triple>
+#   src-tauri/binaries/lembas   (a resource: installed in the app's own directory, never on PATH)
 #
 #   scripts/fetch-cli.sh [target-triple]      (default: this machine's, from rustc)
 #
@@ -39,6 +39,7 @@ ssh-keygen -Y verify -f "$work/allowed" -I lembas-release -n lembas-release \
   || { echo "fetch-cli: $ASSET.gz does not match SHA256SUMS" >&2; exit 1; }
 
 mkdir -p src-tauri/binaries
-gunzip -c "$work/$ASSET.gz" > "src-tauri/binaries/lembas-$TRIPLE"
+gunzip -c "$work/$ASSET.gz" > src-tauri/binaries/lembas
-chmod 755 "src-tauri/binaries/lembas-$TRIPLE"
+chmod 755 src-tauri/binaries/lembas
-echo "fetch-cli: LLeMbas CLI $VERSION ($ASSET) -> src-tauri/binaries/lembas-$TRIPLE"
+rm -f src-tauri/binaries/lembas-*   # where an earlier version of this script put it
+echo "fetch-cli: LLeMbas CLI $VERSION ($ASSET) -> src-tauri/binaries/lembas"

scripts/publish-update.sh

@@ -0,0 +1,47 @@
+#!/usr/bin/env bash
+# Offer a release to installed copies of LLeMbas Desktop: sign its packages with the updater key
+# and write the update manifest the app reads (https://llembas.eu/desktop/latest.json).
+#
+#   MINISIGN_KEY=path/to/updater.key scripts/publish-update.sh v0.3.0 path/to/LLeMbas-Website
+#
+# The packages are the ones release.yml published on GitHub for the tag, checked against that
+# release's SHA256SUMS first. The app verifies each package's signature with the public key in
+# src-tauri/tauri.conf.json before installing it, so the manifest's host need not be trusted.
+# This writes site/desktop/latest.json in the website's checkout; committing and pushing it is
+# what publishes the update.
+set -euo pipefail
+TAG="${1:?usage: publish-update.sh vX.Y.Z path/to/LLeMbas-Website}"
+SITE="${2:?usage: publish-update.sh vX.Y.Z path/to/LLeMbas-Website}"
+KEY="${MINISIGN_KEY:?set MINISIGN_KEY to the minisign secret key of the updater}"
+VERSION="${TAG#v}"
+BASE="https://github.com/LLeMbas/LLeMbas-Desktop/releases/download/$TAG"
+DEB="llembas-desktop_${VERSION}_amd64.deb"
+APPIMAGE="llembas-desktop_${VERSION}_amd64.AppImage"
+
+work="$(mktemp -d)"
+trap 'rm -rf "$work"' EXIT
+for f in SHA256SUMS "$DEB" "$APPIMAGE"; do
+  curl -fsSL --retry 3 -o "$work/$f" "$BASE/$f"
+done
+[ "$(sed -n -E 's/^# llembas-desktop //p' "$work/SHA256SUMS" | head -n1)" = "$VERSION" ] \
+  || { echo "publish-update: SHA256SUMS is not for $VERSION" >&2; exit 1; }
+(cd "$work" && grep -E "  ($DEB|$APPIMAGE)\$" SHA256SUMS | sha256sum -c --strict --quiet -) \
+  || { echo "publish-update: the packages do not match SHA256SUMS" >&2; exit 1; }
+
+sig() {
+  # Tab-separated, with the version: the app refuses a package whose signature names another one.
+  minisign -S -s "$KEY" -m "$work/$1" -x "$work/$1.minisig" \
+    -t "$(printf 'timestamp:%s\tfile:%s\tversion:%s' "$(date +%s)" "$1" "$VERSION")" >/dev/null
+  base64 -w0 "$work/$1.minisig"
+}
+notes="$(git tag -l --format='%(contents)' "$TAG" | sed '/-----BEGIN SSH SIGNATURE-----/,$d' | tail -n +3)"
+
+mkdir -p "$SITE/site/desktop"
+jq -n --arg v "$VERSION" --arg notes "$notes" --arg date "$(date -u +%Y-%m-%dT%H:%M:%SZ)" \
+  --arg deb_url "$BASE/$DEB" --arg deb_sig "$(sig "$DEB")" \
+  --arg app_url "$BASE/$APPIMAGE" --arg app_sig "$(sig "$APPIMAGE")" \
+  '{version: $v, notes: $notes, pub_date: $date, platforms: {
+     "linux-x86_64-deb": {url: $deb_url, signature: $deb_sig},
+     "linux-x86_64-appimage": {url: $app_url, signature: $app_sig}}}' \
+  > "$SITE/site/desktop/latest.json"
+echo "publish-update: wrote $SITE/site/desktop/latest.json for $VERSION — commit and push it to publish"

src-tauri/Cargo.lock

@@ -47,6 +47,15 @@ version = "1.0.104"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "330a5ed07fa54e4702c9d6c4174f74427fc0ef6e214bbd677ae50a5099946470"
 
+[[package]]
+name = "arbitrary"
+version = "1.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3bc62ac97cc33321f50863d514c3bc38a453947a8f9e781137e47c7401020aed"
+dependencies = [
+ "derive_arbitrary",
+]
+
 [[package]]
 name = "async-broadcast"
 version = "0.7.2"
@@ -708,6 +717,17 @@ dependencies = [
  "serde_core",
 ]
 
+[[package]]
+name = "derive_arbitrary"
+version = "1.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1b034bd7d5f032402a2479444dcc6f74e36a03f31854d41680fb240ef682a1ac"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 3.0.8",
+]
+
 [[package]]
 name = "derive_more"
 version = "2.1.1"
@@ -976,6 +996,16 @@ dependencies = [
  "rustc_version",
 ]
 
+[[package]]
+name = "filetime"
+version = "0.2.29"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5c287a33c7f0a620c38e641e7f60827713987b3c0f26e8ddc9462cc69cf75759"
+dependencies = [
+ "cfg-if",
+ "libc",
+]
+
 [[package]]
 name = "find-msvc-tools"
 version = "0.1.14"
@@ -1520,6 +1550,21 @@ dependencies = [
  "want",
 ]
 
+[[package]]
+name = "hyper-rustls"
+version = "0.27.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dfa8e654703247911e29c23fbeaa261834bd9bb74efba2f9acddc37bfb127f53"
+dependencies = [
+ "http",
+ "hyper",
+ "hyper-util",
+ "rustls",
+ "tokio",
+ "tokio-rustls",
+ "tower-service",
+]
+
 [[package]]
 name = "hyper-util"
 version = "0.1.21"
@@ -1539,9 +1584,11 @@ dependencies = [
  "percent-encoding",
  "pin-project-lite",
  "socket2",
+ "system-configuration",
  "tokio",
  "tower-service",
  "tracing",
+ "windows-registry",
 ]
 
 [[package]]
@@ -1844,6 +1891,36 @@ dependencies = [
  "windows-sys 0.45.0",
 ]
 
+[[package]]
+name = "jni"
+version = "0.22.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5efd9a482cf3a427f00d6b35f14332adc7902ce91efb778580e180ff90fa3498"
+dependencies = [
+ "cfg-if",
+ "combine",
+ "jni-macros",
+ "jni-sys 0.4.1",
+ "log",
+ "simd_cesu8",
+ "thiserror 2.0.21",
+ "walkdir",
+ "windows-link",
+]
+
+[[package]]
+name = "jni-macros"
+version = "0.22.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a00109accc170f0bdb141fed3e393c565b6f5e072365c3bd58f5b062591560a3"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "rustc_version",
+ "simd_cesu8",
+ "syn 2.0.119",
+]
+
 [[package]]
 name = "jni-sys"
 version = "0.3.1"
@@ -1987,8 +2064,9 @@ checksum = "47d9d19d1d6efa0109d2f65ff4c85cddd50bd572e5a00127ab10987290bcefae"
 
 [[package]]
 name = "llembas-desktop"
-version = "0.1.0"
+version = "0.4.0"
 dependencies = [
+ "gtk",
  "libc",
  "serde",
  "serde_json",
@@ -1997,6 +2075,7 @@ dependencies = [
  "tauri-plugin-dialog",
  "tauri-plugin-opener",
  "tauri-plugin-single-instance",
+ "tauri-plugin-updater",
  "ureq",
 ]
 
@@ -2047,6 +2126,12 @@ version = "0.3.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6877bb514081ee2a7ff5ef9de3281f14a4dd4bceac4c09388074a6b5df8a139a"
 
+[[package]]
+name = "minisign-verify"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "871285dc19d8d0ebe0eef3d0e99a205f2a71363b122632cbbfa4a6c370a960ce"
+
 [[package]]
 name = "miniz_oxide"
 version = "0.8.9"
@@ -2312,6 +2397,18 @@ dependencies = [
  "objc2-core-foundation",
 ]
 
+[[package]]
+name = "objc2-osa-kit"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f112d1746737b0da274ef79a23aac283376f335f4095a083a267a082f21db0c0"
+dependencies = [
+ "bitflags 2.13.2",
+ "objc2",
+ "objc2-app-kit",
+ "objc2-foundation",
+]
+
 [[package]]
 name = "objc2-quartz-core"
 version = "0.3.2"
@@ -2392,6 +2489,12 @@ version = "0.1.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d05e27ee213611ffe7d6348b942e8f942b37114c00cc03cec254295a4a17852e"
 
+[[package]]
+name = "openssl-probe"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7c87def4c32ab89d880effc9e097653c8da5d6ef28e6b539d313baaacfbafcbe"
+
 [[package]]
 name = "option-ext"
 version = "0.2.0"
@@ -2408,6 +2511,20 @@ dependencies = [
  "pin-project-lite",
 ]
 
+[[package]]
+name = "osakit"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "732c71caeaa72c065bb69d7ea08717bd3f4863a4f451402fc9513e29dbd5261b"
+dependencies = [
+ "objc2",
+ "objc2-foundation",
+ "objc2-osa-kit",
+ "serde",
+ "serde_json",
+ "thiserror 2.0.21",
+]
+
 [[package]]
 name = "pango"
 version = "0.18.3"
@@ -2813,15 +2930,20 @@ dependencies = [
  "http-body",
  "http-body-util",
  "hyper",
+ "hyper-rustls",
  "hyper-util",
  "js-sys",
  "log",
  "percent-encoding",
  "pin-project-lite",
+ "rustls",
+ "rustls-pki-types",
+ "rustls-platform-verifier",
  "serde",
  "serde_json",
  "sync_wrapper",
  "tokio",
+ "tokio-rustls",
  "tokio-util",
  "tower",
  "tower-http",
@@ -2920,11 +3042,23 @@ version = "0.7.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e5bfb394eeed242e909609f56089eecfe5fda225042e8b171791b9c95f5931e5"
 dependencies = [
- "openssl-probe",
+ "openssl-probe 0.1.6",
  "rustls-pemfile",
  "rustls-pki-types",
  "schannel",
- "security-framework",
+ "security-framework 2.11.1",
+]
+
+[[package]]
+name = "rustls-native-certs"
+version = "0.8.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4a073f5dc7469f984c52ad2752b63b0807745133b6de880b7b64c1ac4c48aec4"
+dependencies = [
+ "openssl-probe 0.2.1",
+ "rustls-pki-types",
+ "schannel",
+ "security-framework 3.7.0",
 ]
 
 [[package]]
@@ -2945,6 +3079,33 @@ dependencies = [
  "zeroize",
 ]
 
+[[package]]
+name = "rustls-platform-verifier"
+version = "0.7.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1167586491e2b18b8bfbb293e8180ec17c201c4f076d7cb3070ca964e7598f98"
+dependencies = [
+ "core-foundation 0.10.1",
+ "core-foundation-sys",
+ "jni 0.22.4",
+ "log",
+ "once_cell",
+ "rustls",
+ "rustls-native-certs 0.8.5",
+ "rustls-platform-verifier-android",
+ "rustls-webpki",
+ "security-framework 3.7.0",
+ "security-framework-sys",
+ "webpki-root-certs",
+ "windows-sys 0.61.2",
+]
+
+[[package]]
+name = "rustls-platform-verifier-android"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "eec689c0bc40ff2458a5977b6619cb718087084a18e02a131c599b62d05e1a5f"
+
 [[package]]
 name = "rustls-webpki"
 version = "0.103.15"
@@ -3050,6 +3211,19 @@ dependencies = [
  "security-framework-sys",
 ]
 
+[[package]]
+name = "security-framework"
+version = "3.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b7f4bc775c73d9a02cde8bf7b2ec4c9d12743edf609006c7facc23998404cd1d"
+dependencies = [
+ "bitflags 2.13.2",
+ "core-foundation 0.10.1",
+ "core-foundation-sys",
+ "libc",
+ "security-framework-sys",
+]
+
 [[package]]
 name = "security-framework-sys"
 version = "2.17.0"
@@ -3281,6 +3455,22 @@ version = "0.3.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3a219298ac11a56ea9a6d2120044824d6f01aeb034955e7af7bc16858527deea"
 
+[[package]]
+name = "simd_cesu8"
+version = "1.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "11031e251abf8611c80f460e19dbdeb54a66db918e49c65a7065b46ac7aec520"
+dependencies = [
+ "rustc_version",
+ "simdutf8",
+]
+
+[[package]]
+name = "simdutf8"
+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e3a9fe34e3e7a50316060351f37187a3f546bce95496156754b601a5fa71b76e"
+
 [[package]]
 name = "siphasher"
 version = "1.0.4"
@@ -3462,6 +3652,27 @@ dependencies = [
  "syn 3.0.8",
 ]
 
+[[package]]
+name = "system-configuration"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a13f3d0daba03132c0aa9767f98351b3488edc2c100cda2d2ec2b04f3d8d3c8b"
+dependencies = [
+ "bitflags 2.13.2",
+ "core-foundation 0.9.4",
+ "system-configuration-sys",
+]
+
+[[package]]
+name = "system-configuration-sys"
+version = "0.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8e1d1b10ced5ca923a1fcb8d03e96b8d3268065d724548c0211415ff6ac6bac4"
+dependencies = [
+ "core-foundation-sys",
+ "libc",
+]
+
 [[package]]
 name = "system-deps"
 version = "6.2.2"
@@ -3493,7 +3704,7 @@ dependencies = [
  "gdkwayland-sys",
  "gdkx11-sys",
  "gtk",
- "jni",
+ "jni 0.21.1",
  "libc",
  "log",
  "ndk",
@@ -3526,6 +3737,17 @@ dependencies = [
  "syn 2.0.119",
 ]
 
+[[package]]
+name = "tar"
+version = "0.4.46"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3f6221d9a6003c78398e3b239969f352578258df48c8eb051caadae0015bc840"
+dependencies = [
+ "filetime",
+ "libc",
+ "xattr",
+]
+
 [[package]]
 name = "target-lexicon"
 version = "0.12.16"
@@ -3549,7 +3771,7 @@ dependencies = [
  "gtk",
  "heck 0.5.0",
  "http",
- "jni",
+ "jni 0.21.1",
  "libc",
  "log",
  "mime",
@@ -3741,6 +3963,40 @@ dependencies = [
  "zbus",
 ]
 
+[[package]]
+name = "tauri-plugin-updater"
+version = "2.13.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "855a336eb389d2c1502244fd48fa2d8cb487a430f691bbaed025195f99a04489"
+dependencies = [
+ "base64 0.22.1",
+ "dirs",
+ "flate2",
+ "futures-util",
+ "http",
+ "infer",
+ "libc",
+ "log",
+ "minisign-verify",
+ "osakit",
+ "percent-encoding",
+ "reqwest",
+ "rustls",
+ "semver",
+ "serde",
+ "serde_json",
+ "tar",
+ "tauri",
+ "tauri-plugin",
+ "tempfile",
+ "thiserror 2.0.21",
+ "time",
+ "tokio",
+ "url",
+ "windows-sys 0.61.2",
+ "zip",
+]
+
 [[package]]
 name = "tauri-runtime"
 version = "2.12.1"
@@ -3751,7 +4007,7 @@ dependencies = [
  "dpi",
  "gtk",
  "http",
- "jni",
+ "jni 0.21.1",
  "objc2",
  "objc2-ui-kit",
  "objc2-web-kit",
@@ -3774,7 +4030,7 @@ checksum = "7f9e7e0c9f80a5130773cfabb6df4dc924518fb1b2c923726966804634b57d22"
 dependencies = [
  "gtk",
  "http",
- "jni",
+ "jni 0.21.1",
  "log",
  "objc2",
  "objc2-app-kit",
@@ -3963,6 +4219,16 @@ dependencies = [
  "windows-sys 0.61.2",
 ]
 
+[[package]]
+name = "tokio-rustls"
+version = "0.26.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c9cc2678c2cdd569ef8215e2afd7954ada2ae20b4fdd2c5fe6139a3b02d105db"
+dependencies = [
+ "rustls",
+ "tokio",
+]
+
 [[package]]
 name = "tokio-util"
 version = "0.7.20"
@@ -4227,7 +4493,7 @@ dependencies = [
  "log",
  "once_cell",
  "rustls",
- "rustls-native-certs",
+ "rustls-native-certs 0.7.3",
  "rustls-pki-types",
  "serde",
  "serde_json",
@@ -4489,6 +4755,15 @@ dependencies = [
  "system-deps",
 ]
 
+[[package]]
+name = "webpki-root-certs"
+version = "1.0.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b96554aa2acc8ccdb7e1c9a58a7a68dd5d13bccc69cd124cb09406db612a1c9b"
+dependencies = [
+ "rustls-pki-types",
+]
+
 [[package]]
 name = "webpki-roots"
 version = "0.26.11"
@@ -4671,6 +4946,17 @@ dependencies = [
  "windows-link",
 ]
 
+[[package]]
+name = "windows-registry"
+version = "0.6.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "02752bf7fbdcce7f2a27a742f798510f3e5ad88dbe84871e5168e2120c3d5720"
+dependencies = [
+ "windows-link",
+ "windows-result",
+ "windows-strings",
+]
+
 [[package]]
 name = "windows-result"
 version = "0.4.1"
@@ -4987,7 +5273,7 @@ dependencies = [
  "gtk",
  "http",
  "javascriptcore-rs",
- "jni",
+ "jni 0.21.1",
  "libc",
  "ndk",
  "objc2",
@@ -5034,6 +5320,16 @@ dependencies = [
  "pkg-config",
 ]
 
+[[package]]
+name = "xattr"
+version = "1.6.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "32e45ad4206f6d2479085147f02bc2ef834ac85886624a23575ae137c8aa8156"
+dependencies = [
+ "libc",
+ "rustix",
+]
+
 [[package]]
 name = "yoke"
 version = "0.8.3"
@@ -5187,6 +5483,18 @@ dependencies = [
  "syn 3.0.8",
 ]
 
+[[package]]
+name = "zip"
+version = "4.6.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "caa8cd6af31c3b31c6631b8f483848b91589021b28fffe50adada48d4f4d2ed1"
+dependencies = [
+ "arbitrary",
+ "crc32fast",
+ "indexmap 2.14.2",
+ "memchr",
+]
+
 [[package]]
 name = "zlib-rs"
 version = "0.6.8"

src-tauri/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "llembas-desktop"
-version = "0.1.0"
+version = "0.4.0"
 description = "LLeMbas Desktop: your LLeMbas server in a window, with the agent on this computer"
 authors = ["Jaroslav Beneš"]
 license = "MIT"
@@ -17,10 +17,11 @@ crate-type = ["staticlib", "cdylib", "rlib"]
 tauri-build = { version = "2", features = [] }
 
 [dependencies]
-tauri = { version = "2", features = ["tray-icon"] }
+tauri = { version = "2", features = ["tray-icon", "unstable"] }
 tauri-plugin-dialog = "2"
 tauri-plugin-opener = "2"
 tauri-plugin-single-instance = "2"
+tauri-plugin-updater = "2"
 serde = { version = "1", features = ["derive"] }
 serde_json = "1"
 ureq = { version = "2", default-features = false, features = ["tls", "native-certs", "json"] }
@@ -28,6 +29,10 @@ ureq = { version = "2", default-features = false, features = ["tls", "native-cer
 [target.'cfg(unix)'.dependencies]
 libc = "0.2"
 
+[target.'cfg(target_os = "linux")'.dependencies]
+# The window's GTK box: Tauri packs every webview into it with an equal share on Linux.
+gtk = "0.18"
+
 [profile.release]
 codegen-units = 1
 lto = true

src-tauri/capabilities/default.json

@@ -1,7 +1,15 @@
 {
   "$schema": "../gen/schemas/desktop-schema.json",
   "identifier": "default",
-  "description": "The app's own pages (the first-run page). The server's web UI is a remote page and gets no IPC at all: this capability lists no remote URLs.",
+  "description": "The app's own pages: the title bar and the first-run page. The server's web UI is a remote page in the same window and gets no IPC at all: this capability lists no remote URL. The window permissions are the title bar's: moving, resizing, minimising, maximising and closing (which hides).",
   "windows": ["main"],
-  "permissions": ["core:default"]
+  "permissions": [
+    "core:default",
+    "core:window:allow-start-dragging",
+    "core:window:allow-start-resize-dragging",
+    "core:window:allow-internal-toggle-maximize",
+    "core:window:allow-minimize",
+    "core:window:allow-toggle-maximize",
+    "core:window:allow-close"
+  ]
 }

src-tauri/llembas-desktop.desktop

@@ -0,0 +1,12 @@
+[Desktop Entry]
+Categories={{categories}}
+{{#if comment}}
+Comment={{comment}}
+{{/if}}
+Exec={{exec}}
+StartupWMClass={{exec}}
+Icon={{icon}}
+Name=LLeMbas
+GenericName=LLM workspace
+Terminal=false
+Type=Application

src-tauri/src/cli.rs

@@ -6,22 +6,38 @@
 //! installed by hand on the same computer are one device to the server, not two.
 
 use std::path::{Path, PathBuf};
+use std::sync::OnceLock;
 
-/// The bundled binary: Tauri puts an `externalBin` beside the app's own executable.
+static BUNDLED: OnceLock<PathBuf> = OnceLock::new();
-/// `LLEMBAS_DESKTOP_CLI` points elsewhere, for development.
+
+/// Where the bundle put the CLI: the app's resource directory (`/usr/lib/llembas-desktop/` from
+/// the .deb, inside the AppImage otherwise) — the app's own copy, never on PATH, so it neither
+/// shadows nor is shadowed by a `lembas` installed by hand. Set once at start.
+pub fn set_bundled(resource_dir: &Path) {
+    let _ = BUNDLED.set(resource_dir.join(exe_name()));
+}
+
+fn exe_name() -> &'static str {
+    if cfg!(windows) {
+        "lembas.exe"
+    } else {
+        "lembas"
+    }
+}
+
+/// The CLI to run: `LLEMBAS_DESKTOP_CLI` (development), else the bundled one, else one beside
+/// the app's executable (`cargo tauri dev`).
 pub fn binary() -> PathBuf {
     if let Some(p) = std::env::var_os("LLEMBAS_DESKTOP_CLI") {
         return PathBuf::from(p);
     }
-    let name = if cfg!(windows) {
+    if let Some(p) = BUNDLED.get().filter(|p| p.exists()) {
-        "lembas.exe"
+        return p.clone();
-    } else {
+    }
-        "lembas"
-    };
     std::env::current_exe()
         .ok()
-        .and_then(|e| e.parent().map(|d| d.join(name)))
+        .and_then(|e| e.parent().map(|d| d.join(exe_name())))
-        .unwrap_or_else(|| PathBuf::from(name))
+        .unwrap_or_else(|| PathBuf::from(exe_name()))
 }
 
 fn home() -> PathBuf {
@@ -92,6 +108,25 @@ fn running_in(state: &Path) -> Option<u32> {
     (pid != 0 && alive(pid)).then_some(pid)
 }
 
+/// This computer's host name: what the CLI sent the server as `device_host` at login
+/// (`os.hostname()`, the kernel's node name), so the server can tell which device is this one.
+#[cfg(unix)]
+pub fn hostname() -> Option<String> {
+    let mut buf = [0u8; 256];
+    let r = unsafe { libc::gethostname(buf.as_mut_ptr().cast(), buf.len()) };
+    if r != 0 {
+        return None;
+    }
+    let end = buf.iter().position(|&b| b == 0).unwrap_or(buf.len());
+    let name = String::from_utf8_lossy(&buf[..end]).trim().to_string();
+    (!name.is_empty()).then_some(name)
+}
+
+#[cfg(not(unix))]
+pub fn hostname() -> Option<String> {
+    std::env::var("COMPUTERNAME").ok().filter(|s| !s.is_empty())
+}
+
 #[cfg(unix)]
 pub fn alive(pid: u32) -> bool {
     // Signal 0 checks without sending; EPERM means it exists but is someone else's.

src-tauri/src/lib.rs

@@ -1,8 +1,11 @@
 //! LLeMbas Desktop: the server's web UI in a window of its own, and the LLeMbas CLI's agent
 //! running on this computer, so agent chats can work in its projects without a terminal.
 //!
-//! - **One window, `main`.** Before a server is chosen it shows the app's own first-run page
+//! - **One window, `main`, drawn by the app**: no system decoration, the app's own title bar (a
-//!   (`ui/`); after, the server itself. Closing it hides it; the tray brings it back.
+//!   local page, `ui/titlebar.html`) on top and the content below it — before a server is chosen
+//!   the first-run page (`ui/index.html`), after it the server itself. Two webviews in one window,
+//!   so the server's pages never share a document with the app's controls. Closing hides the
+//!   window; the tray, the title bar's menu or starting the app again bring it back.
 //! - **The server's pages get no IPC.** They are remote content, and the one capability lists no
 //!   remote URL. Links that leave the server open in the system browser.
 //! - **The agent is the CLI's**: `lembas login --json` links this computer, and
@@ -10,6 +13,7 @@
 
 mod agent;
 mod cli;
+mod remote;
 mod settings;
 
 use std::io::{BufRead, BufReader};
@@ -20,16 +24,28 @@ use std::sync::Mutex;
 use serde::Serialize;
 use tauri::menu::{Menu, MenuItem, PredefinedMenuItem};
 use tauri::tray::TrayIconBuilder;
+use tauri::webview::WebviewBuilder;
+use tauri::window::{Color, WindowBuilder};
 use tauri::{
-    AppHandle, Emitter, Manager, RunEvent, Url, WebviewUrl, WebviewWindowBuilder, WindowEvent, Wry,
+    AppHandle, Emitter, LogicalPosition, LogicalSize, Manager, RunEvent, Url, Webview, WebviewUrl,
+    Window, WindowEvent, Wry,
 };
 use tauri_plugin_dialog::{DialogExt, MessageDialogKind};
 use tauri_plugin_opener::OpenerExt;
+use tauri_plugin_updater::UpdaterExt;
 
 use agent::{Agent, State as AgentState};
+use remote::Remote;
 use settings::Settings;
 
 const MAIN: &str = "main";
+const TITLEBAR: &str = "titlebar";
+const CONTENT: &str = "content";
+/// The title bar's height, in logical pixels: `--titlebar-h` in `ui/titlebar.css`.
+const TITLE_H: f64 = 36.0;
+/// The frame left around the webviews while the window is not maximized: the window's own
+/// surface, where the pointer resizes it (a webview over the edge would take the events).
+const FRAME: f64 = 4.0;
 
 struct App {
     config_dir: PathBuf,
@@ -37,6 +53,10 @@ struct App {
     agent: Agent,
     tray: Mutex<Option<TrayItems>>,
     linking: Mutex<bool>,
+    /// The newer release the last check found, if any.
+    update: Mutex<Option<String>>,
+    /// The agent's folders, as `lembas remote` last answered.
+    remote: Mutex<Option<Remote>>,
 }
 
 struct TrayItems {
@@ -66,6 +86,10 @@ struct Status {
     linked: bool,
     agent: AgentState,
     agent_wanted: bool,
+    /// A newer release of the app, when the last check found one.
+    update: Option<String>,
+    /// Which folders the agent may open sessions in (None: not known yet).
+    remote: Option<Remote>,
 }
 
 fn status(app: &App) -> Status {
@@ -76,6 +100,8 @@ fn status(app: &App) -> Status {
         server: s.server,
         agent: app.agent.state(),
         agent_wanted: app.agent.wanted(),
+        update: app.update.lock().unwrap().clone(),
+        remote: app.remote.lock().unwrap().clone(),
     }
 }
 
@@ -140,12 +166,134 @@ fn set_agent_wanted(handle: &AppHandle, on: bool) -> Result<(), String> {
     let app = handle.state::<App>();
     let s = app.update(|s| s.agent = on)?;
     match (on, s.server) {
-        (true, Some(server)) => app.agent.start(server),
+        (true, Some(server)) => {
+            app.agent.start(server);
+            let h = handle.clone();
+            std::thread::spawn(move || {
+                // Connected but allowed into no folder is the state a new computer starts in:
+                // say so where the folders are chosen, rather than showing a green light.
+                if let Some(r) = refresh_remote(&h) {
+                    if !r.usable() {
+                        let _ = h.run_on_main_thread({
+                            let h = h.clone();
+                            move || {
+                                let _ = open_main(&h, None);
+                            }
+                        });
+                    }
+                }
+            });
+        }
         _ => app.agent.stop(),
     }
     Ok(())
 }
 
+/// Ask the CLI which folders the agent may use; remember and announce it.
+fn refresh_remote(handle: &AppHandle) -> Option<Remote> {
+    let r = remote::run(&["list"]).ok();
+    *handle.state::<App>().remote.lock().unwrap() = r.clone();
+    let _ = handle.emit("status", status_of(handle));
+    r
+}
+
+/// After a change: remember the new state, and start the app's own agent again when the CLI
+/// says the running service cannot take the change live.
+fn remote_changed(handle: &AppHandle, r: Remote) {
+    let app = handle.state::<App>();
+    *app.remote.lock().unwrap() = Some(r.clone());
+    if r.restart_needed && app.agent.wanted() {
+        if let Some(server) = app.settings().server {
+            app.agent.start(server);
+        }
+    }
+    let _ = handle.emit("status", status_of(handle));
+}
+
+/// Run a `lembas remote` change off the main thread; the page hears the outcome as `status`,
+/// or as `remote-error`.
+fn change_remote(handle: &AppHandle, args: Vec<String>) {
+    let h = handle.clone();
+    std::thread::spawn(move || {
+        let refs: Vec<&str> = args.iter().map(String::as_str).collect();
+        match remote::run(&refs) {
+            Ok(r) => remote_changed(&h, r),
+            Err(e) => {
+                let _ = h.emit("remote-error", e);
+            }
+        }
+    });
+}
+
+#[tauri::command]
+fn remote_refresh(handle: AppHandle) {
+    std::thread::spawn(move || {
+        refresh_remote(&handle);
+    });
+}
+
+/// Choose a folder with the system's dialog and let the agent work in it (this turns remote
+/// control on, if it was off).
+#[tauri::command]
+fn remote_add(handle: AppHandle) {
+    let h = handle.clone();
+    handle
+        .dialog()
+        .file()
+        .set_title("A folder the agent may work in")
+        .pick_folder(move |picked| {
+            if let Some(path) = picked.and_then(|p| p.into_path().ok()) {
+                change_remote(&h, vec!["add".into(), path.to_string_lossy().into_owned()]);
+            }
+        });
+}
+
+#[tauri::command]
+fn remote_remove(handle: AppHandle, dir: String) {
+    change_remote(&handle, vec!["remove".into(), dir]);
+}
+
+#[tauri::command]
+fn remote_mode(handle: AppHandle, mode: String) -> Result<(), String> {
+    if !["manual", "edit", "auto", "plan"].contains(&mode.as_str()) {
+        return Err(format!("no such mode: {mode}"));
+    }
+    change_remote(&handle, vec!["mode".into(), mode]);
+    Ok(())
+}
+
+#[tauri::command]
+fn remote_terminal(handle: AppHandle, on: bool) {
+    change_remote(
+        &handle,
+        vec!["terminal".into(), if on { "on" } else { "off" }.into()],
+    );
+}
+
+/// The server's pages are told they are in LLeMbas Desktop, and on which computer: it shows
+/// the device that is this computer as "Local". A label only — it grants nothing.
+fn user_agent() -> String {
+    let platform = if cfg!(target_os = "linux") {
+        "X11; Linux x86_64"
+    } else if cfg!(target_os = "macos") {
+        "Macintosh; Intel Mac OS X 10_15_7"
+    } else {
+        "Windows NT 10.0; Win64; x64"
+    };
+    let host = cli::hostname()
+        .filter(|h| {
+            h.len() <= 253
+                && h.chars()
+                    .all(|c| c.is_ascii_alphanumeric() || ".-_".contains(c))
+        })
+        .map(|h| format!(" (host={h})"))
+        .unwrap_or_default();
+    format!(
+        "Mozilla/5.0 ({platform}) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.0 Safari/605.1.15 LLeMbasDesktop/{}{host}",
+        env!("CARGO_PKG_VERSION")
+    )
+}
+
 /// The app's own first-run page, as the webview addresses it on this platform.
 fn local_page() -> Url {
     let base = if cfg!(windows) {
@@ -156,35 +304,131 @@ fn local_page() -> Url {
     Url::parse(base).expect("a fixed URL")
 }
 
+fn content(handle: &AppHandle) -> Option<Webview> {
+    handle.get_webview(CONTENT)
+}
+
+fn main_window(handle: &AppHandle) -> Option<Window> {
+    handle.get_window(MAIN)
+}
+
 /// Show the main window on `server`, or on the first-run page; made when it does not exist.
 fn open_main(handle: &AppHandle, server: Option<&str>) -> Result<(), String> {
     let target = match server {
         Some(s) => Some(Url::parse(s).map_err(|e| format!("{s}: {e}"))?),
         None => None,
     };
-    if let Some(w) = handle.get_webview_window(MAIN) {
+    if let (Some(w), Some(c)) = (main_window(handle), content(handle)) {
-        w.navigate(target.unwrap_or_else(local_page))
+        c.navigate(target.unwrap_or_else(local_page))
             .map_err(|e| e.to_string())?;
         let _ = w.show();
         let _ = w.unminimize();
         let _ = w.set_focus();
         return Ok(());
     }
+    build_main(handle, target).map_err(|e| e.to_string())
+}
+
+fn build_main(handle: &AppHandle, target: Option<Url>) -> tauri::Result<()> {
+    let window = WindowBuilder::new(handle, MAIN)
+        .title("LLeMbas")
+        .inner_size(1280.0, 840.0)
+        .min_inner_size(420.0, 560.0)
+        .decorations(false)
+        // The frame's colour: the Moria border, as `--border` in the pages.
+        .background_color(Color(0x26, 0x30, 0x3A, 0xFF))
+        .build()?;
+    let size = window
+        .inner_size()?
+        .to_logical::<f64>(window.scale_factor()?);
+    window.add_child(
+        WebviewBuilder::new(TITLEBAR, WebviewUrl::App("titlebar.html".into())),
+        LogicalPosition::new(FRAME, FRAME),
+        LogicalSize::new(size.width - 2.0 * FRAME, TITLE_H),
+    )?;
     let url = match target {
         Some(u) => WebviewUrl::External(u),
         None => WebviewUrl::App("index.html".into()),
     };
+    #[cfg(target_os = "linux")]
+    if let Some(bar) = handle.get_webview(TITLEBAR) {
+        pin_titlebar(&bar);
+    }
     let nav = handle.clone();
-    WebviewWindowBuilder::new(handle, MAIN, url)
+    window.add_child(
-        .title("LLeMbas")
+        WebviewBuilder::new(CONTENT, url)
-        .inner_size(1280.0, 840.0)
+            .user_agent(&user_agent())
-        .min_inner_size(420.0, 560.0)
+            .on_navigation(move |url| allowed(&nav, url)),
-        .on_navigation(move |url| allowed(&nav, url))
+        LogicalPosition::new(FRAME, FRAME + TITLE_H),
-        .build()
+        LogicalSize::new(
-        .map_err(|e| e.to_string())?;
+            size.width - 2.0 * FRAME,
+            (size.height - TITLE_H - 2.0 * FRAME).max(0.0),
+        ),
+    )?;
+    layout(&window);
     Ok(())
 }
 
+/// On Linux, Tauri packs every webview of a window into the window's GTK box, each with an equal
+/// share of the height, and positions and sizes set on a webview are not applied there. So the
+/// title bar is told directly: a fixed height, no share of what is left (the content takes it).
+#[cfg(target_os = "linux")]
+fn pin_titlebar(bar: &Webview) {
+    let _ = bar.with_webview(|pv| {
+        use gtk::prelude::*;
+        let view = pv.inner();
+        view.set_size_request(-1, TITLE_H as i32);
+        if let Some(parent) = view.parent().and_then(|p| p.downcast::<gtk::Box>().ok()) {
+            parent.set_child_packing(&view, false, false, 0, gtk::PackType::Start);
+        }
+    });
+}
+
+/// Lay the two webviews out in the window: the title bar on top, the content under it, and the
+/// frame around both unless the window is maximized (then there is nothing to resize).
+fn layout(window: &Window) {
+    let framed =
+        !(window.is_maximized().unwrap_or(false) || window.is_fullscreen().unwrap_or(false));
+    #[cfg(target_os = "linux")]
+    {
+        use gtk::prelude::*;
+        // The box's border is the frame: the window's own surface, which GTK resizes by.
+        if let Ok(vbox) = window.default_vbox() {
+            vbox.set_border_width(if framed { FRAME as u32 } else { 0 });
+        }
+    }
+    #[cfg(not(target_os = "linux"))]
+    place(window, framed);
+}
+
+#[cfg(not(target_os = "linux"))]
+fn place(window: &Window, framed: bool) {
+    use tauri::{PhysicalPosition, PhysicalSize};
+    let handle = window.app_handle();
+    let (Some(bar), Some(body)) = (handle.get_webview(TITLEBAR), handle.get_webview(CONTENT))
+    else {
+        return;
+    };
+    let (Ok(size), Ok(scale)) = (window.inner_size(), window.scale_factor()) else {
+        return;
+    };
+    let frame = if window.is_maximized().unwrap_or(false) || window.is_fullscreen().unwrap_or(false)
+    {
+        0
+    } else {
+        (FRAME * scale).round() as u32
+    };
+    let title = (TITLE_H * scale).round() as u32;
+    let width = size.width.saturating_sub(2 * frame);
+    let _ = bar.set_position(PhysicalPosition::new(frame, frame));
+    let _ = bar.set_size(PhysicalSize::new(width, title));
+    let _ = body.set_position(PhysicalPosition::new(frame, frame + title));
+    let _ = body.set_size(PhysicalSize::new(
+        width,
+        size.height.saturating_sub(title + 2 * frame),
+    ));
+}
+
 /// The window may show the app's own pages and the server; anything else opens in the browser.
 fn allowed(handle: &AppHandle, url: &Url) -> bool {
     let local = matches!(url.scheme(), "tauri" | "asset")
@@ -250,8 +494,10 @@ fn start_link(handle: &AppHandle) -> Result<(), String> {
                             .and_then(|v| v.as_str())
                             .unwrap_or("");
                         if let Ok(url) = Url::parse(link) {
-                            if let Some(w) = handle.get_webview_window(MAIN) {
+                            if let Some(c) = content(&handle) {
-                                let _ = w.navigate(url);
+                                let _ = c.navigate(url);
+                            }
+                            if let Some(w) = main_window(&handle) {
                                 let _ = w.show();
                                 let _ = w.set_focus();
                             }
@@ -304,7 +550,7 @@ fn status_of(handle: &AppHandle) -> Status {
 
 fn show(handle: &AppHandle) {
     let server = handle.state::<App>().settings().server;
-    if let Some(w) = handle.get_webview_window(MAIN) {
+    if let Some(w) = main_window(handle) {
         let _ = w.show();
         let _ = w.unminimize();
         let _ = w.set_focus();
@@ -324,7 +570,7 @@ fn build_tray(handle: &AppHandle) -> tauri::Result<TrayItems> {
     )?;
     let toggle = MenuItem::with_id(handle, "toggle", "Start the agent", true, None::<&str>)?;
     let link = MenuItem::with_id(handle, "link", "Link this computer…", true, None::<&str>)?;
-    let server = MenuItem::with_id(handle, "server", "Change server…", true, None::<&str>)?;
+    let server = MenuItem::with_id(handle, "server", "Settings…", true, None::<&str>)?;
     let quit = MenuItem::with_id(handle, "quit", "Quit LLeMbas", true, None::<&str>)?;
     let menu = Menu::with_items(
         handle,
@@ -341,8 +587,121 @@ fn build_tray(handle: &AppHandle) -> tauri::Result<TrayItems> {
     )?;
     let mut tray = TrayIconBuilder::with_id("tray")
         .tooltip("LLeMbas")
-        .menu(&menu)
+        .menu(&menu);
-        .on_menu_event(|h, ev| match ev.id().as_ref() {
+    if let Some(icon) = handle.default_window_icon() {
+        tray = tray.icon(icon.clone());
+    }
+    tray.build(handle)?;
+    Ok(TrayItems { status, toggle })
+}
+
+/// How often a running app looks for a new release (and once shortly after it starts).
+const UPDATE_EVERY: std::time::Duration = std::time::Duration::from_secs(6 * 3600);
+
+/// Ask the update manifest whether a newer release exists; remember and announce the answer.
+/// The manifest and each package are signed with the updater key, which the app checks before
+/// installing anything.
+async fn check_update(handle: &AppHandle) -> Result<Option<String>, String> {
+    let found = handle
+        .updater()
+        .map_err(|e| e.to_string())?
+        .check()
+        .await
+        .map_err(|e| e.to_string())?
+        .map(|u| u.version);
+    *handle.state::<App>().update.lock().unwrap() = found.clone();
+    let _ = handle.emit("status", status_of(handle));
+    Ok(found)
+}
+
+fn watch_updates(handle: AppHandle) {
+    std::thread::spawn(move || {
+        std::thread::sleep(std::time::Duration::from_secs(20));
+        loop {
+            let _ = tauri::async_runtime::block_on(check_update(&handle));
+            std::thread::sleep(UPDATE_EVERY);
+        }
+    });
+}
+
+/// Download and install the newer release, then start again on it. A .deb is installed with
+/// the system's password prompt (pkexec); an AppImage replaces itself.
+async fn install_update(handle: AppHandle) -> Result<(), String> {
+    let update = handle
+        .updater()
+        .map_err(|e| e.to_string())?
+        .check()
+        .await
+        .map_err(|e| e.to_string())?
+        .ok_or("LLeMbas is up to date.")?;
+    update
+        .download_and_install(|_, _| {}, || {})
+        .await
+        .map_err(|e| format!("The update could not be installed: {e}"))?;
+    handle.state::<App>().agent.stop();
+    handle.restart()
+}
+
+fn offer_update(h: &AppHandle) {
+    let h = h.clone();
+    tauri::async_runtime::spawn(async move {
+        let version = match check_update(&h).await {
+            Ok(Some(v)) => v,
+            Ok(None) => {
+                h.dialog()
+                    .message(format!(
+                        "LLeMbas {} is the newest release.",
+                        env!("CARGO_PKG_VERSION")
+                    ))
+                    .title("LLeMbas is up to date")
+                    .show(|_| {});
+                return;
+            }
+            Err(e) => {
+                h.dialog()
+                    .message(format!("Could not look for updates: {e}"))
+                    .title("LLeMbas")
+                    .kind(MessageDialogKind::Warning)
+                    .show(|_| {});
+                return;
+            }
+        };
+        let again = h.clone();
+        h.dialog()
+            .message(format!(
+                "LLeMbas {version} is available (this is {}). Install it now? LLeMbas starts again afterwards; the agent stops for a moment.",
+                env!("CARGO_PKG_VERSION")
+            ))
+            .title("Update LLeMbas")
+            .buttons(tauri_plugin_dialog::MessageDialogButtons::OkCancelCustom(
+                "Install".into(),
+                "Later".into(),
+            ))
+            .show(move |yes| {
+                if yes {
+                    tauri::async_runtime::spawn(async move {
+                        if let Err(e) = install_update(again.clone()).await {
+                            again
+                                .dialog()
+                                .message(e)
+                                .title("LLeMbas")
+                                .kind(MessageDialogKind::Error)
+                                .show(|_| {});
+                        }
+                    });
+                }
+            });
+    });
+}
+
+#[tauri::command]
+fn update_app(handle: AppHandle) {
+    offer_update(&handle);
+}
+
+/// A menu item chosen, from the tray or from the title bar's menu: the same ids in both.
+fn on_menu(h: &AppHandle, id: &str) {
+    match id {
         "open" => show(h),
         "toggle" => {
             let on = !h.state::<App>().agent.wanted();
@@ -361,6 +720,14 @@ fn build_tray(handle: &AppHandle) -> tauri::Result<TrayItems> {
                     .show(|_| {});
             }
         }
+        "update" => offer_update(h),
+        "reload" => {
+            if let Some(c) = content(h) {
+                if let Ok(url) = c.url() {
+                    let _ = c.navigate(url);
+                }
+            }
+        }
         "server" => {
             let _ = open_main(h, None);
         }
@@ -369,12 +736,61 @@ fn build_tray(handle: &AppHandle) -> tauri::Result<TrayItems> {
             h.exit(0);
         }
         _ => {}
-        });
-    if let Some(icon) = handle.default_window_icon() {
-        tray = tray.icon(icon.clone());
     }
-    tray.build(handle)?;
+}
-    Ok(TrayItems { status, toggle })
+
+/// The title bar's menu: the tray's items, where the window is (a desktop without a tray —
+/// GNOME without the AppIndicator extension — has no other way to reach them).
+/// The title bar's menu, opened under the button that asked for it: `x`, `y` are the button's
+/// bottom-left corner in the title bar page. (A plain popup opens at the pointer, which a Wayland
+/// compositor does not tell the app — it landed in the middle of the window.)
+#[tauri::command]
+fn titlebar_menu(window: Window, x: f64, y: f64) -> Result<(), String> {
+    let h = window.app_handle();
+    let app = h.state::<App>();
+    let m = |id: &str, text: &str, on: bool| MenuItem::with_id(h, id, text, on, None::<&str>);
+    let build = || -> tauri::Result<Menu<Wry>> {
+        let status = m("status", &app.agent.state().label(), false)?;
+        let toggle = m(
+            "toggle",
+            if app.agent.wanted() {
+                "Stop the agent"
+            } else {
+                "Start the agent"
+            },
+            true,
+        )?;
+        let link = m("link", "Link this computer…", true)?;
+        let update = match app.update.lock().unwrap().clone() {
+            Some(v) => m("update", &format!("Install LLeMbas {v}…"), true)?,
+            None => m("update", "Check for updates…", true)?,
+        };
+        let reload = m("reload", "Reload", true)?;
+        let server = m("server", "Settings…", true)?;
+        let quit = m("quit", "Quit LLeMbas", true)?;
+        Menu::with_items(
+            h,
+            &[
+                &status,
+                &toggle,
+                &link,
+                &PredefinedMenuItem::separator(h)?,
+                &reload,
+                &update,
+                &server,
+                &PredefinedMenuItem::separator(h)?,
+                &quit,
+            ],
+        )
+    };
+    let menu = build().map_err(|e| e.to_string())?;
+    // The title bar sits inside the frame while the window is not maximized.
+    let framed =
+        !(window.is_maximized().unwrap_or(false) || window.is_fullscreen().unwrap_or(false));
+    let inset = if framed { FRAME } else { 0.0 };
+    window
+        .popup_menu_at(&menu, LogicalPosition::new(x + inset, y + inset))
+        .map_err(|e| e.to_string())
 }
 
 fn on_agent_state(handle: &AppHandle, state: &AgentState) {
@@ -395,15 +811,27 @@ pub fn run() {
         .plugin(tauri_plugin_single_instance::init(|h, _argv, _cwd| show(h)))
         .plugin(tauri_plugin_dialog::init())
         .plugin(tauri_plugin_opener::init())
+        .plugin(tauri_plugin_updater::Builder::new().build())
         .invoke_handler(tauri::generate_handler![
             get_status,
             set_server,
             set_agent,
-            link_computer
+            link_computer,
+            titlebar_menu,
+            update_app,
+            remote_refresh,
+            remote_add,
+            remote_remove,
+            remote_mode,
+            remote_terminal
         ])
+        .on_menu_event(|h, ev| on_menu(h, ev.id().as_ref()))
         .setup(|app| {
             let handle = app.handle().clone();
             let config_dir = app.path().app_config_dir()?;
+            if let Ok(dir) = app.path().resource_dir() {
+                cli::set_bundled(&dir);
+            }
             let log = app.path().app_log_dir()?.join("agent.log");
             let notify_handle = handle.clone();
             let agent = Agent::new(log, move |s| {
@@ -419,23 +847,41 @@ pub fn run() {
                 agent,
                 tray: Mutex::new(None),
                 linking: Mutex::new(false),
+                update: Mutex::new(None),
+                remote: Mutex::new(None),
             });
             let items = build_tray(&handle)?;
             *handle.state::<App>().tray.lock().unwrap() = Some(items);
             open_main(&handle, loaded.server.as_deref())?;
+            watch_updates(handle.clone());
+            {
+                let h = handle.clone();
+                std::thread::spawn(move || {
+                    refresh_remote(&h);
+                });
+            }
             if let (true, Some(server)) = (loaded.agent, loaded.server) {
                 handle.state::<App>().agent.start(server);
             }
             Ok(())
         })
-        .on_window_event(|window, event| {
+        .on_window_event(|window, event| match event {
             // Closing the window keeps the app (and the agent) in the tray.
-            if let WindowEvent::CloseRequested { api, .. } = event {
+            WindowEvent::CloseRequested { api, .. } if window.label() == MAIN => {
-                if window.label() == MAIN {
                 let _ = window.hide();
                 api.prevent_close();
             }
+            WindowEvent::Resized(_) | WindowEvent::ScaleFactorChanged { .. }
+                if window.label() == MAIN =>
+            {
+                layout(window);
+                let _ = window.emit_to(
+                    TITLEBAR,
+                    "maximized",
+                    window.is_maximized().unwrap_or(false),
+                );
             }
+            _ => {}
         })
         .build(tauri::generate_context!())
         .expect("LLeMbas Desktop could not start")

src-tauri/src/remote.rs

@@ -0,0 +1,77 @@
+//! Which folders the agent may work in: the CLI's `remote` settings, read and changed through
+//! `lembas remote … --json` so the app never edits the CLI's files itself. A freshly linked
+//! computer allows no folder at all (remote control is off and `roots` is empty), so the agent
+//! is connected but every agent chat on it is refused until at least one folder is added.
+
+use std::process::{Command, Stdio};
+
+use serde::{Deserialize, Serialize};
+
+use crate::cli;
+
+/// `lembas remote list --json`, and what every changing command answers with.
+#[derive(Debug, Clone, Default, Serialize, Deserialize, PartialEq)]
+#[serde(default)]
+pub struct Remote {
+    pub enabled: bool,
+    pub roots: Vec<String>,
+    pub max_mode: String,
+    pub terminal: bool,
+    /// The running service must start again for the change to apply.
+    pub restart_needed: bool,
+}
+
+impl Remote {
+    /// Agent chats can be opened here at all.
+    pub fn usable(&self) -> bool {
+        self.enabled && !self.roots.is_empty()
+    }
+}
+
+/// Run `lembas remote <args…> --json`: the new state, or what the CLI said went wrong.
+pub fn run(args: &[&str]) -> Result<Remote, String> {
+    let out = Command::new(cli::binary())
+        .arg("remote")
+        .args(args)
+        .arg("--json")
+        .stdin(Stdio::null())
+        .output()
+        .map_err(|e| format!("Could not start {}: {e}", cli::binary().display()))?;
+    if !out.status.success() {
+        let err = String::from_utf8_lossy(&out.stderr).trim().to_string();
+        return Err(if err.is_empty() {
+            format!("lembas remote {} failed ({})", args.join(" "), out.status)
+        } else {
+            err.trim_start_matches("lembas: ").to_string()
+        });
+    }
+    parse(&String::from_utf8_lossy(&out.stdout))
+}
+
+/// The last JSON object the CLI printed (it may say a word before it).
+fn parse(stdout: &str) -> Result<Remote, String> {
+    stdout
+        .lines()
+        .rev()
+        .find_map(|l| serde_json::from_str::<Remote>(l.trim()).ok())
+        .ok_or_else(|| "lembas remote gave no answer this version of the app understands — is the bundled LLeMbas CLI too old?".to_string())
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn reads_the_state_and_defaults_what_is_missing() {
+        let r = parse(
+            "added /home/a/project\n{\"enabled\":true,\"roots\":[\"/home/a/project\"],\"max_mode\":\"edit\",\"terminal\":false}\n",
+        )
+        .unwrap();
+        assert!(r.usable());
+        assert_eq!(r.roots, vec!["/home/a/project"]);
+        assert!(!r.restart_needed);
+        let off = parse("{\"enabled\":false,\"roots\":[]}").unwrap();
+        assert!(!off.usable());
+        assert!(parse("lembas: unknown command remote").is_err());
+    }
+}

src-tauri/tauri.conf.json

@@ -1,6 +1,6 @@
 {
   "$schema": "https://schema.tauri.app/config/2",
-  "productName": "LLeMbas",
+  "productName": "llembas-desktop",
   "mainBinaryName": "llembas-desktop",
   "identifier": "eu.llembas.desktop",
   "build": {
@@ -15,7 +15,10 @@
   },
   "bundle": {
     "active": true,
-    "targets": ["deb", "appimage"],
+    "targets": [
+      "deb",
+      "appimage"
+    ],
     "category": "Productivity",
     "shortDescription": "Your LLeMbas server in a window, with the agent on this computer",
     "longDescription": "LLeMbas Desktop opens your LLeMbas server's web UI in a window of its own and runs the LLeMbas CLI agent on this computer, so agent chats can work in your projects here without a terminal.",
@@ -30,6 +33,28 @@
       "icons/icon.png",
       "icons/icon.ico"
     ],
-    "externalBin": ["binaries/lembas"]
+    "resources": {
+      "binaries/lembas": "lembas"
+    },
+    "linux": {
+      "deb": {
+        "desktopTemplate": "llembas-desktop.desktop",
+        "conflicts": [
+          "l-le-mbas"
+        ],
+        "replaces": [
+          "l-le-mbas"
+        ]
+      }
+    }
+  },
+  "plugins": {
+    "updater": {
+      "pubkey": "dW50cnVzdGVkIGNvbW1lbnQ6IG1pbmlzaWduIHB1YmxpYyBrZXkgMzNBNUJCMkNCQTBCOTEwRgpSV1FQa1F1NkxMdWxNOCtnT2NMQU5QOTBHZ3hUaC9UNHVFZThUR2lqOGdWWUVObi9mbU00amoyago=",
+      "endpoints": [
+        "https://llembas.eu/desktop/latest.json"
+      ],
+      "requireSignedVersion": true
+    }
   }
 }

ui/app.css

@@ -1,55 +1,4 @@
-/* The first-run page: the LLeMbas look (Moria dark, Shire light), no build step. */
+/* The first-run page. Tokens in tokens.css. */
-:root {
-  --font-ui: ui-monospace, "JetBrains Mono", "SF Mono", "Cascadia Code", Menlo, Consolas, monospace;
-  --font-body: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
-  --text-sm: 0.8125rem;
-  --text-base: 0.9375rem;
-  --text-xl: 1.5rem;
-  --sp-2: 0.5rem;
-  --sp-3: 0.75rem;
-  --sp-4: 1rem;
-  --sp-6: 1.5rem;
-  --sp-8: 2rem;
-  --radius: 2px;
-  --press: 2px;
-  --control-h: 2.5rem;
-  --card-max: 34rem;
-
-  color-scheme: dark;
-  --bg: #0B0D10;
-  --surface: #11151A;
-  --surface-hover: #1D232B;
-  --border: #26303A;
-  --border-strong: #5C6976;
-  --ink: #E2E8EC;
-  --ink-muted: #A6B2BC;
-  --accent: #8FD8E8;
-  --accent-hover: #B4E6F1;
-  --accent-ink: #061418;
-  --leaf: #7EE081;
-  --warning: #F0A840;
-  --shadow-card: 4px 4px 0 rgba(0, 0, 0, 0.55);
-}
-
-@media (prefers-color-scheme: light) {
-  :root {
-    color-scheme: light;
-    --bg: #F1EAD6;
-    --surface: #F8F3E5;
-    --surface-hover: #ECE4CF;
-    --border: #CBBF9D;
-    --border-strong: #2A2E22;
-    --ink: #1F2418;
-    --ink-muted: #474D3B;
-    --accent: #285F3C;
-    --accent-hover: #1F4D30;
-    --accent-ink: #F8F3E5;
-    --leaf: #3D6B1C;
-    --warning: #7E5200;
-    --shadow-card: 4px 4px 0 var(--border-strong);
-  }
-}
-
 * { box-sizing: border-box; }
 
 html, body { margin: 0; min-height: 100%; }
@@ -84,7 +33,7 @@ p { margin: 0; }
 
 /* A field is three stacked parts on fixed rows: label, control row, hint. */
 .field { display: grid; grid-template-rows: auto var(--control-h) auto; gap: var(--sp-2); }
-label { font: var(--text-sm) / 1.4 var(--font-ui); color: var(--ink-muted); }
+label, .label { font: var(--text-sm) / 1.4 var(--font-ui); color: var(--ink-muted); }
 .hint { font-size: var(--text-sm); color: var(--ink-muted); min-height: 1.4em; }
 .hint.is-error, .status.is-error { color: var(--warning); }
 
@@ -128,3 +77,53 @@ input:focus-visible, .btn:focus-visible { outline: 2px solid var(--accent); outl
   .row { grid-template-columns: 1fr; grid-template-rows: var(--control-h) var(--control-h); }
   .field { grid-template-rows: auto auto auto; }
 }
+
+/* The folder list: every row the same two tracks, the path cut from the left (its end is the
+   part that tells folders apart), the full path in the title. */
+.folders { list-style: none; margin: 0; padding: 0; display: grid; gap: var(--sp-2); }
+.folders li {
+  display: grid;
+  grid-template-columns: minmax(0, 1fr) auto;
+  gap: var(--sp-2);
+  align-items: center;
+  min-height: var(--control-h);
+  padding: 0 0 0 var(--sp-3);
+  background: var(--bg);
+  border: 1px solid var(--border);
+  border-radius: var(--radius);
+}
+.folders .path {
+  overflow: hidden;
+  white-space: nowrap;
+  text-overflow: ellipsis;
+  direction: rtl;
+  text-align: left;
+  font: var(--text-sm) var(--font-ui);
+}
+.folders .path bdi { direction: ltr; unicode-bidi: isolate; }
+.folders .btn { height: calc(var(--control-h) - 2px); box-shadow: none; border-width: 0 0 0 1px; }
+.folders .empty { padding: var(--sp-3); color: var(--warning); font-size: var(--text-sm); }
+
+.settings-grid {
+  display: grid;
+  grid-template-columns: repeat(auto-fit, minmax(min(100%, 14rem), 1fr));
+  grid-auto-rows: auto var(--control-h) auto;
+  column-gap: var(--sp-4);
+  row-gap: var(--sp-2);
+  margin-top: var(--sp-4);
+}
+/* Each field spans three shared rows (label, control, hint), so the controls of side-by-side
+   fields sit on one line whatever their labels and hints do. */
+.settings-grid .field { grid-row: span 3; grid-template-rows: subgrid; }
+select {
+  height: var(--control-h);
+  min-width: 0;
+  padding: 0 var(--sp-2);
+  font: var(--text-sm) var(--font-ui);
+  color: var(--ink);
+  background: var(--bg);
+  border: 1px solid var(--border-strong);
+  border-radius: var(--radius);
+}
+.check { display: flex; align-items: center; gap: var(--sp-2); color: var(--ink); }
+.check input { width: 1.1rem; height: 1.1rem; margin: 0; accent-color: var(--accent); }

ui/app.js

@@ -20,13 +20,53 @@ function render(s) {
   $("version").textContent = s.version
   if (s.server && !$("address").value) $("address").value = s.server
   $("agent-section").hidden = !s.server
-  const [text, cls] = (AGENT[s.agent.state] ?? AGENT.off)(s.agent.detail)
+  const noFolders = s.remote && !(s.remote.enabled && s.remote.roots.length)
+  const [text, cls] =
+    s.agent.state === "running" && noFolders
+      ? ["The agent is connected, but may open no folder yet: add one below.", "is-error"]
+      : (AGENT[s.agent.state] ?? AGENT.off)(s.agent.detail)
   const status = $("agent-status")
   status.textContent = text
   status.className = `status ${cls}`
   $("link").textContent = s.linked ? "Link again" : "Link this computer"
   $("toggle").textContent = s.agent_wanted ? "Stop the agent" : "Start the agent"
   $("toggle").disabled = !s.linked && !s.agent_wanted
+  renderFolders(s)
+}
+
+function renderFolders(s) {
+  const r = s.remote
+  $("folders-section").hidden = !s.server || !s.linked || !r
+  if (!r) return
+  const list = $("folders")
+  list.replaceChildren()
+  if (!r.enabled || !r.roots.length) {
+    const li = document.createElement("li")
+    li.className = "empty"
+    li.textContent = "No folder yet: the agent can open nothing. Add the folder of a project."
+    list.append(li)
+  }
+  for (const dir of r.enabled ? r.roots : []) {
+    const li = document.createElement("li")
+    const path = document.createElement("span")
+    path.className = "path"
+    path.title = dir
+    const inner = document.createElement("bdi")
+    inner.textContent = dir
+    path.append(inner)
+    const remove = document.createElement("button")
+    remove.type = "button"
+    remove.className = "btn"
+    remove.textContent = "Remove"
+    remove.setAttribute("aria-label", `Remove ${dir}`)
+    remove.addEventListener("click", () => invoke("remote_remove", { dir }))
+    li.append(path, remove)
+    list.append(li)
+  }
+  if (r.max_mode) $("max-mode").value = r.max_mode
+  $("terminal").checked = !!r.terminal
+  $("folders-status").className = "status"
+  $("folders-status").textContent = ""
 }
 
 async function refresh() {
@@ -70,5 +110,14 @@ $("open").addEventListener("click", async () => {
   if (s.server) await invoke("set_server", { address: s.server })
 })
 
+$("add-folder").addEventListener("click", () => invoke("remote_add"))
+$("max-mode").addEventListener("change", (e) => invoke("remote_mode", { mode: e.target.value }))
+$("terminal").addEventListener("change", (e) => invoke("remote_terminal", { on: e.target.checked }))
+
+listen("remote-error", (e) => {
+  $("folders-status").className = "status is-error"
+  $("folders-status").textContent = String(e.payload)
+})
 listen("status", (e) => render(e.payload))
 refresh()
+invoke("remote_refresh")

ui/index.html

@@ -5,6 +5,7 @@
 <meta name="viewport" content="width=device-width, initial-scale=1">
 <meta name="color-scheme" content="dark light">
 <title>LLeMbas</title>
+<link rel="stylesheet" href="tokens.css">
 <link rel="stylesheet" href="app.css">
 <script src="app.js" defer></script>
 </head>
@@ -42,6 +43,35 @@
       <button type="button" class="btn btn--primary" id="open">Open the server</button>
     </div>
   </section>
+
+  <section aria-labelledby="folders-h" id="folders-section" hidden>
+    <h2 id="folders-h">[ PROJECT FOLDERS ]</h2>
+    <p class="muted">Agent chats from your server can work in these folders and anything inside
+      them — nowhere else on this computer. Start one in the server's Agents tab, on
+      <strong>Local</strong>.</p>
+    <ul class="folders" id="folders"></ul>
+    <p class="status" id="folders-status" aria-live="polite"></p>
+    <div class="row row--buttons">
+      <button type="button" class="btn btn--primary" id="add-folder">Add folder…</button>
+    </div>
+    <div class="settings-grid">
+      <div class="field">
+        <label for="max-mode">The most an agent chat may do here</label>
+        <select id="max-mode">
+          <option value="manual">Manual — asks first</option>
+          <option value="edit">Edit — asks before commands</option>
+          <option value="auto">Auto — asks nothing</option>
+          <option value="plan">Plan — changes nothing</option>
+        </select>
+        <p class="hint">A chat asking for more is lowered to this.</p>
+      </div>
+      <div class="field">
+        <span class="label">Terminal</span>
+        <label class="check"><input type="checkbox" id="terminal"> Let the server open a terminal here</label>
+        <p class="hint">A shell as you, in one of these folders.</p>
+      </div>
+    </div>
+  </section>
 </main>
 </body>
 </html>

ui/titlebar.css

@@ -0,0 +1,93 @@
+/* The title bar: one row, fixed height, every slot a fixed or shared track so nothing in it
+   moves when the host name or the agent's state changes length. */
+* { box-sizing: border-box; }
+
+html, body {
+  margin: 0;
+  height: var(--titlebar-h);
+  overflow: hidden;
+  background: var(--bg);
+  color: var(--ink);
+  user-select: none;
+  -webkit-user-select: none;
+  cursor: default;
+}
+
+.bar {
+  display: grid;
+  /* leaf · name · host (takes the rest, and is the drag area) · update · agent · menu · sep · 3 controls */
+  grid-template-columns: var(--titlebar-h) auto minmax(0, 1fr) auto auto var(--titlebar-h) 1px repeat(3, 2.875rem);
+  align-items: center;
+  height: var(--titlebar-h);
+  border-bottom: 1px solid var(--border);
+  font: 600 var(--text-sm) / 1 var(--font-ui);
+}
+
+.bar__leaf { justify-self: center; width: 18px; height: 18px; image-rendering: pixelated; }
+.bar__name b { color: var(--leaf); font-weight: 700; }
+.bar__host {
+  padding: 0 var(--sp-3);
+  color: var(--ink-muted);
+  font-weight: 400;
+  white-space: nowrap;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  align-self: stretch;
+  display: flex;
+  align-items: center;
+}
+
+button {
+  height: var(--titlebar-h);
+  margin: 0;
+  padding: 0;
+  font: inherit;
+  color: var(--ink-muted);
+  background: transparent;
+  border: 0;
+  border-radius: 0;
+  cursor: pointer;
+}
+button:hover { color: var(--ink); background: var(--surface-hover); }
+button:focus-visible { outline: 2px solid var(--accent); outline-offset: -2px; }
+
+.bar__agent {
+  display: grid;
+  grid-template-columns: 0.5rem auto;
+  gap: var(--sp-2);
+  align-items: center;
+  padding: 0 var(--sp-3);
+  font-weight: 400;
+}
+.dot { width: 0.5rem; height: 0.5rem; background: var(--ink-muted); }
+.bar__agent[data-state="running"] .dot,
+.bar__agent[data-state="elsewhere"] .dot { background: var(--leaf); }
+.bar__agent[data-state="starting"] .dot { background: var(--accent); }
+.bar__agent[data-state="failed"] .dot,
+.bar__agent[data-state="not_linked"] .dot,
+.bar__agent[data-state="no_folders"] .dot { background: var(--warning); }
+
+.bar__update {
+  padding: 0 var(--sp-3);
+  color: var(--accent-ink);
+  background: var(--accent);
+}
+.bar__update:hover { color: var(--accent-ink); background: var(--accent-hover); }
+/* Hidden keeps its grid track (auto, so zero wide): the slots after it never move. */
+.bar__update[hidden] { display: block; width: 0; padding: 0; overflow: hidden; }
+
+.bar__sep { width: 1px; height: 1.25rem; background: var(--border); }
+
+.bar__btn { display: grid; place-items: center; }
+.bar__btn svg { width: 16px; height: 16px; }
+.bar__btn--close:hover { color: #fff; background: var(--danger); }
+
+#maximize .i-restore { display: none; }
+#maximize[data-maximized] .i-max { display: none; }
+#maximize[data-maximized] .i-restore { display: block; }
+
+/* Narrow windows: the host goes first, then the agent's words (its dot stays). */
+@media (max-width: 34rem) {
+  .bar__host { visibility: hidden; }
+  #agent-text { display: none; }
+}

ui/titlebar.html

@@ -0,0 +1,37 @@
+<!doctype html>
+<html lang="en">
+<head>
+<meta charset="utf-8">
+<meta name="color-scheme" content="dark light">
+<title>LLeMbas</title>
+<link rel="stylesheet" href="tokens.css">
+<link rel="stylesheet" href="titlebar.css">
+<script src="titlebar.js" defer></script>
+</head>
+<body>
+<header class="bar" data-tauri-drag-region>
+  <img class="bar__leaf" src="logo-mark.svg" alt="" width="18" height="18" data-tauri-drag-region>
+  <span class="bar__name" data-tauri-drag-region><b>LL</b>e<b>M</b>bas</span>
+  <span class="bar__host" id="host" data-tauri-drag-region></span>
+
+  <button class="bar__update" id="update" type="button" hidden>update</button>
+  <button class="bar__agent" id="agent" type="button" title="Agent">
+    <span class="dot" aria-hidden="true"></span><span id="agent-text">agent off</span>
+  </button>
+  <button class="bar__btn" id="menu" type="button" aria-label="Menu" title="Menu">
+    <svg viewBox="0 0 16 16" aria-hidden="true"><g fill="currentColor"><rect x="3" y="4" width="10" height="1.5"/><rect x="3" y="7.25" width="10" height="1.5"/><rect x="3" y="10.5" width="10" height="1.5"/></g></svg>
+  </button>
+  <span class="bar__sep" aria-hidden="true"></span>
+  <button class="bar__btn" id="minimize" type="button" aria-label="Minimise" title="Minimise">
+    <svg viewBox="0 0 16 16" aria-hidden="true"><rect x="4" y="10" width="8" height="1.5" fill="currentColor"/></svg>
+  </button>
+  <button class="bar__btn" id="maximize" type="button" aria-label="Maximise" title="Maximise">
+    <svg class="i-max" viewBox="0 0 16 16" aria-hidden="true"><path d="M4.75 4.75h6.5v6.5h-6.5z" fill="none" stroke="currentColor" stroke-width="1.5"/></svg>
+    <svg class="i-restore" viewBox="0 0 16 16" aria-hidden="true"><path d="M3.75 6.25h6v6h-6z M6.25 6.25v-2.5h6v6h-2.5" fill="none" stroke="currentColor" stroke-width="1.5"/></svg>
+  </button>
+  <button class="bar__btn bar__btn--close" id="close" type="button" aria-label="Close" title="Close (LLeMbas stays in the tray)">
+    <svg viewBox="0 0 16 16" aria-hidden="true"><path d="M4.5 4.5l7 7M11.5 4.5l-7 7" stroke="currentColor" stroke-width="1.5"/></svg>
+  </button>
+</header>
+</body>
+</html>

ui/titlebar.js

@@ -0,0 +1,62 @@
+// The title bar. Moving and double-click maximising come from `data-tauri-drag-region`; the
+// buttons call the window directly; the menu and the agent pill open the app's native menu (the
+// tray's items), which can reach past this 36-pixel-high page.
+"use strict"
+
+const { invoke } = window.__TAURI__.core
+const { listen } = window.__TAURI__.event
+const win = window.__TAURI__.window.getCurrentWindow()
+
+const $ = (id) => document.getElementById(id)
+
+const WORDS = {
+  off: "agent off",
+  not_linked: "not linked",
+  starting: "agent starting…",
+  running: "agent running",
+  elsewhere: "agent running (service)",
+  failed: "agent stopped",
+  no_folders: "agent: no folders",
+}
+
+function render(s) {
+  let host = ""
+  try {
+    host = s.server ? new URL(s.server).host : ""
+  } catch {}
+  $("host").textContent = host
+  $("host").title = s.server || ""
+  // Connected but allowed into no folder: a green light would say it works when it cannot.
+  const noFolders = s.remote && !(s.remote.enabled && s.remote.roots.length)
+  const state = s.agent.state === "running" && noFolders ? "no_folders" : s.agent.state
+  $("agent").dataset.state = state
+  $("agent-text").textContent = WORDS[state] ?? state
+  $("agent").title = state === "failed" ? `Agent stopped: ${s.agent.detail}` : "Agent"
+  $("update").hidden = !s.update
+  $("update").textContent = s.update ? `update ${s.update}` : "update"
+  $("update").title = s.update ? `LLeMbas ${s.update} is available (this is ${s.version})` : ""
+}
+
+function maximized(on) {
+  const b = $("maximize")
+  b.toggleAttribute("data-maximized", on)
+  b.setAttribute("aria-label", on ? "Restore" : "Maximise")
+  b.title = on ? "Restore" : "Maximise"
+}
+
+$("minimize").addEventListener("click", () => win.minimize())
+$("maximize").addEventListener("click", () => win.toggleMaximize())
+$("close").addEventListener("click", () => win.close())
+$("update").addEventListener("click", () => invoke("update_app"))
+// The menu opens under the button that was clicked: its bottom-left corner, in page pixels.
+function menuAt(button) {
+  const r = button.getBoundingClientRect()
+  return invoke("titlebar_menu", { x: r.left, y: r.bottom })
+}
+$("menu").addEventListener("click", (e) => menuAt(e.currentTarget))
+$("agent").addEventListener("click", (e) => menuAt(e.currentTarget))
+
+listen("status", (e) => render(e.payload))
+listen("maximized", (e) => maximized(!!e.payload))
+invoke("get_status").then(render)
+win.isMaximized().then(maximized)

ui/tokens.css

@@ -0,0 +1,54 @@
+/* LLeMbas Desktop's own pages: one set of tokens (Moria dark, Shire light), as on llembas.eu. */
+:root {
+  --font-ui: ui-monospace, "JetBrains Mono", "SF Mono", "Cascadia Code", Menlo, Consolas, monospace;
+  --font-body: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
+  --text-sm: 0.8125rem;
+  --text-base: 0.9375rem;
+  --text-xl: 1.5rem;
+  --sp-2: 0.5rem;
+  --sp-3: 0.75rem;
+  --sp-4: 1rem;
+  --sp-6: 1.5rem;
+  --sp-8: 2rem;
+  --radius: 2px;
+  --press: 2px;
+  --control-h: 2.5rem;
+  --card-max: 40rem;
+
+  color-scheme: dark;
+  --bg: #0B0D10;
+  --surface: #11151A;
+  --surface-hover: #1D232B;
+  --border: #26303A;
+  --border-strong: #5C6976;
+  --ink: #E2E8EC;
+  --ink-muted: #A6B2BC;
+  --accent: #8FD8E8;
+  --accent-hover: #B4E6F1;
+  --accent-ink: #061418;
+  --leaf: #7EE081;
+  --warning: #F0A840;
+  --shadow-card: 4px 4px 0 rgba(0, 0, 0, 0.55);
+  --danger: #E5534B;
+  --titlebar-h: 36px;
+}
+
+@media (prefers-color-scheme: light) {
+  :root {
+    color-scheme: light;
+    --bg: #F1EAD6;
+    --surface: #F8F3E5;
+    --surface-hover: #ECE4CF;
+    --border: #CBBF9D;
+    --border-strong: #2A2E22;
+    --ink: #1F2418;
+    --ink-muted: #474D3B;
+    --accent: #285F3C;
+    --accent-hover: #1F4D30;
+    --accent-ink: #F8F3E5;
+    --leaf: #3D6B1C;
+    --warning: #7E5200;
+    --shadow-card: 4px 4px 0 var(--border-strong);
+    --danger: #B3261E;
+  }
+}