M10 (task 2022, issue 2021): Arch pacman package + commit icon set (native, system libs)

Native-first fix for the AppImage black window: a PKGBUILD that builds from source,
linked against SYSTEM graphics libs, so it renders on the host driver.
- desktop/packaging/arch/{PKGBUILD,thoughtsync.desktop,README.md}: `makepkg -si`
  installs /usr/bin/thoughtsync + .desktop + icon; deps webkit2gtk-4.1/gtk3/...;
  builds the frontend + `cargo build --release` (no tauri-cli). Uses the host
  graphics stack -> avoids EGL_BAD_PARAMETER.
- Commit the icon set (desktop/src-tauri/icons/*.png, un-gitignored) so BOTH
  `cargo build` (pacman) and `cargo tauri build` (deb/appimage) work without a
  generate step; bundle.icon -> the 4 committed PNGs; drop the `cargo tauri icon`
  step from desktop.yml.
- Broaden the WebKit software-render hardening (lib.rs) to ALL Linux (was
  AppImage-scoped) so the native build also renders if system WebKit is finicky.

Can't CI-test the PKGBUILD (Arch-only; CI is Debian) -- operator builds locally.
desktop.yml re-verifies the deb+AppImage build with the committed icons.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01FRgehjoz7Yv8LkUfADxACm

desktop/packaging/arch/PKGBUILD

@@ -0,0 +1,68 @@
+# Maintainer: bvandeusen
+#
+# ThoughtSync desktop (Tauri v2) — native Arch package.
+#
+# Built from THIS repo checkout, from SOURCE, linked against your SYSTEM libraries.
+# That is the whole point: it uses the host's graphics stack (webkit2gtk-4.1 + your
+# GPU driver), which avoids the bundled-AppImage "EGL_BAD_PARAMETER" black window.
+#
+# Usage (from a clone of the thoughtsync repo):
+#   cd desktop/packaging/arch
+#   makepkg -si
+#
+pkgname=thoughtsync-desktop
+pkgver=0.1.0
+pkgrel=1
+pkgdesc="ThoughtSync desktop — local-first Keep-style thought capture"
+arch=('x86_64')
+url="https://git.fabledsword.com/bvandeusen/thoughtsync"
+license=('MIT')
+depends=(
+  'webkit2gtk-4.1'
+  'gtk3'
+  'cairo'
+  'gdk-pixbuf2'
+  'glib2'
+  'libsoup3'
+  'pango'
+  'hicolor-icon-theme'
+  'desktop-file-utils'
+  'librsvg'
+)
+makedepends=('rust' 'nodejs' 'npm' 'git' 'pkgconf')
+# Cargo's release profile already does its own LTO; don't let makepkg inject C-level
+# LTO flags into the crates that build native code.
+options=('!lto')
+
+# Locate the repo root this PKGBUILD lives inside (desktop/packaging/arch/).
+_repo() { git -C "$startdir" rev-parse --show-toplevel; }
+
+pkgver() {
+  cd "$startdir"
+  printf "r%s.%s" "$(git rev-list --count HEAD)" "$(git rev-parse --short HEAD)"
+}
+
+build() {
+  local repo; repo="$(_repo)"
+
+  # 1) Build the shared Vue frontend — it's embedded into the binary at compile time
+  #    (tauri generate_context!), so it must exist before the cargo build.
+  cd "$repo/frontend"
+  npm ci
+  npm run build
+
+  # 2) Compile the native binary against SYSTEM libraries (no bundling, no tauri-cli).
+  cd "$repo/desktop/src-tauri"
+  cargo build --release
+}
+
+package() {
+  local repo; repo="$(_repo)"
+
+  install -Dm755 "$repo/desktop/src-tauri/target/release/thoughtsync-desktop" \
+    "$pkgdir/usr/bin/thoughtsync"
+  install -Dm644 "$repo/desktop/src-tauri/app-icon.png" \
+    "$pkgdir/usr/share/pixmaps/thoughtsync.png"
+  install -Dm644 "$startdir/thoughtsync.desktop" \
+    "$pkgdir/usr/share/applications/thoughtsync.desktop"
+}

desktop/packaging/arch/README.md

@@ -0,0 +1,31 @@
+# ThoughtSync desktop — Arch package
+
+A native Arch/pacman package, built **from source** so it links against your
+**system** libraries (webkit2gtk-4.1 + your GPU driver). This is the robust install
+on Arch/CachyOS: it avoids the bundled-AppImage `EGL_BAD_PARAMETER` black-window
+problem entirely, and it installs a proper application-menu entry.
+
+## Install
+
+From a clone of the `thoughtsync` repo:
+
+```sh
+cd desktop/packaging/arch
+makepkg -si
+```
+
+`makepkg` will pull the build tools (`rust`, `nodejs`, `npm`) and runtime deps
+(`webkit2gtk-4.1`, `gtk3`, …) via pacman, compile the frontend + the Rust binary,
+and install:
+
+- `/usr/bin/thoughtsync` — the app
+- `/usr/share/applications/thoughtsync.desktop` — the menu entry
+- `/usr/share/pixmaps/thoughtsync.png` — the icon
+
+Then launch **ThoughtSync** from your app menu (or run `thoughtsync`).
+
+## Notes
+
+- Builds in-place from the checkout (`makepkg` reads the committed state via git).
+- The compile takes a few minutes the first time (Rust release build).
+- Uninstall: `sudo pacman -R thoughtsync-desktop`.

desktop/packaging/arch/thoughtsync.desktop

@@ -0,0 +1,9 @@
+[Desktop Entry]
+Type=Application
+Name=ThoughtSync
+Comment=Capture a fleeting thought in a second
+Exec=thoughtsync %U
+Icon=thoughtsync
+Terminal=false
+Categories=Utility;Office;
+StartupWMClass=ThoughtSync

desktop/src-tauri/.gitignore

@@ -3,7 +3,3 @@
 
 # Generated by Tauri
 /gen/schemas
-
-# App icons are generated from ../../frontend/public/icon.svg via `cargo tauri
-# icon` (in CI before the build); not committed.
-/icons/

desktop/src-tauri/src/lib.rs

@@ -30,17 +30,11 @@ pub fn run() {
 /// (https://v2.tauri.app/develop/debug/linux-graphics/) is to force the software
 /// fallbacks at startup, before the webview is created, so end users don't have to.
 ///
-/// We apply the fix ONLY for AppImage launches (where these failures cluster and where
-/// bundled libs are in play), leaving each var overridable — native (.deb) installs use
-/// system libs and keep GPU acceleration untouched. WebKit software rendering is plenty
-/// for this UI.
+/// Applied on all Linux launches (this UI doesn't need GPU compositing, and the failure
+/// spans AppImage, native, and dev builds), each var left overridable so a user can
+/// re-enable acceleration by exporting it themselves before launch.
 #[cfg(target_os = "linux")]
 fn harden_linux_webkit_rendering() {
-    let is_appimage =
-        std::env::var_os("APPIMAGE").is_some() || std::env::var_os("APPDIR").is_some();
-    if !is_appimage {
-        return;
-    }
     // Ordered per Tauri's escalation ladder; each set only if the user hasn't chosen.
     for (key, value) in [
         ("__NV_DISABLE_EXPLICIT_SYNC", "1"),

desktop/src-tauri/tauri.conf.json

@@ -37,8 +37,7 @@
       "icons/32x32.png",
       "icons/128x128.png",
       "icons/128x128@2x.png",
-      "icons/icon.icns",
-      "icons/icon.ico"
+      "icons/icon.png"
     ]
   }
 }