feat(t3code-bin): add T3 Code desktop from the AUR

T3 Code is an open-source control plane for coding agents — Claude Code, Codex, OpenCode, Cursor and Grok driven from one desktop app, on the user's own subscriptions. Upstream ships a Linux x86_64 AppImage only, and the AUR's t3code-bin already tracks it, so this syncs from there in the fast ring.

One Omarchy patch: the AUR launcher runs Electron with --no-sandbox. Chromium falls back to a user-namespace sandbox when it finds no setuid helper, which is what happens on Arch, so the flag only turns the sandbox off. Verified both ways against the built package — sandboxed it reaches display setup, and only with namespaces restricted does it abort on the setuid helper.

🤖 Generated by Opus 5 in Claude Code.

pkgbuilds/t3code-bin/.omarchy/package.json

@@ -0,0 +1,5 @@
+{
+  "source": "aur",
+  "release_ring": "fast",
+  "upstream_commit": "4f0b415dccf7e3b0b85e2289e8c3a7c8603e9fb4"
+}

pkgbuilds/t3code-bin/.omarchy/patches/keep-chromium-sandbox.patch

@@ -0,0 +1,13 @@
+--- a/PKGBUILD
++++ b/PKGBUILD
+@@ -96,7 +96,9 @@
+   extra_flags+=(--ozone-platform-hint=auto)
+ fi
+ 
+-exec "$appdir/t3code" --no-sandbox "${extra_flags[@]}" "$@"
++# Omarchy: Chromium sandboxes itself with a user namespace when it cannot find a
++# setuid helper, which is the case on Arch, so --no-sandbox buys nothing here.
++exec "$appdir/t3code" "${extra_flags[@]}" "$@"
+ EOF
+ 
+   ln -s t3code "$pkgdir/usr/bin/t3-code-desktop"

pkgbuilds/t3code-bin/.upstream-commit

@@ -0,0 +1 @@
+9942a9412013f0429f551a1b3f6a2700fac6ed58

pkgbuilds/t3code-bin/LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2026 T3 Tools Inc.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

pkgbuilds/t3code-bin/PKGBUILD

@@ -0,0 +1,127 @@
+# Maintainer: anon
+
+pkgname=t3code-bin
+pkgver=0.0.33
+pkgrel=1.1
+pkgdesc='T3 Code desktop app packaged from the upstream AppImage'
+arch=('x86_64')
+_upstream_tag='v0.0.33'
+_upstream_version='0.0.33'
+_appimage_name="T3-Code-${_upstream_version}-x86_64.AppImage"
+url='https://t3.codes'
+license=('MIT')
+depends=(
+  'alsa-lib'
+  'at-spi2-core'
+  'cairo'
+  'dbus'
+  'expat'
+  'gcc-libs'
+  'gdk-pixbuf2'
+  'glib2'
+  'gtk3'
+  'hicolor-icon-theme'
+  'libcups'
+  'libdrm'
+  'libx11'
+  'libxcb'
+  'libxcomposite'
+  'libxdamage'
+  'libxext'
+  'libxfixes'
+  'libxkbcommon'
+  'libxrandr'
+  'mesa'
+  'nspr'
+  'nss'
+  'pango'
+  'systemd-libs'
+  'xdg-utils'
+  'zlib'
+)
+optdepends=(
+  'openai-codex: use the system-installed Codex CLI'
+)
+provides=("t3code=${pkgver}")
+conflicts=('t3code')
+options=('!debug' '!emptydirs' '!strip')
+source=(
+  "${_appimage_name}::https://github.com/pingdotgg/t3code/releases/download/${_upstream_tag}/${_appimage_name}"
+  't3code-icon.png'
+  'LICENSE'
+)
+sha256sums=(
+  '415c8648f43c3d22d572f27f2c50fdc8c310ea7fcde9537b903e1e2f1c8775a1'
+  '52c86008b11f90f36b8a8f4cc43b1352d5fda9084c6e5691b806f5bca1a968b6'
+  '935d8f2af0c703f9c39517ee57cc4930b19d02d533be930b63f0e82f93614b43'
+)
+
+prepare() {
+  chmod +x "$srcdir/$_appimage_name"
+  rm -rf "$srcdir/squashfs-root"
+  "$srcdir/$_appimage_name" --appimage-extract >/dev/null
+
+  if [[ ! -d "$srcdir/squashfs-root" ]]; then
+    echo "Failed to extract AppImage payload." >&2
+    return 1
+  fi
+}
+
+package() {
+  install -d "$pkgdir/opt/$pkgname"
+  cp -a "$srcdir/squashfs-root/." "$pkgdir/opt/$pkgname/"
+
+  # Preserve upstream execute bits while ensuring the payload stays readable.
+  chmod -R a+rX "$pkgdir/opt/$pkgname"
+
+  install -Dm755 /dev/stdin "$pkgdir/usr/bin/t3code" << 'EOF'
+#!/usr/bin/env bash
+set -euo pipefail
+
+appdir='/opt/t3code-bin'
+export APPDIR="$appdir"
+
+if [[ -z "${CODEX_CLI_PATH-}" ]] && command -v codex >/dev/null 2>&1; then
+  export CODEX_CLI_PATH="$(command -v codex)"
+fi
+
+export PATH="$appdir:$appdir/usr/bin:$appdir/usr/sbin:$PATH"
+export XDG_DATA_DIRS="$appdir/usr/share${XDG_DATA_DIRS:+:$XDG_DATA_DIRS}"
+export GSETTINGS_SCHEMA_DIR="$appdir/usr/share/glib-2.0/schemas${GSETTINGS_SCHEMA_DIR:+:$GSETTINGS_SCHEMA_DIR}"
+
+extra_flags=()
+if [[ -n "${WAYLAND_DISPLAY-}" || "${XDG_SESSION_TYPE-}" == "wayland" ]]; then
+  extra_flags+=(--enable-features=UseOzonePlatform --ozone-platform=wayland --ozone-platform-hint=wayland)
+else
+  extra_flags+=(--ozone-platform-hint=auto)
+fi
+
+# Omarchy: Chromium sandboxes itself with a user namespace when it cannot find a
+# setuid helper, which is the case on Arch, so --no-sandbox buys nothing here.
+exec "$appdir/t3code" "${extra_flags[@]}" "$@"
+EOF
+
+  ln -s t3code "$pkgdir/usr/bin/t3-code-desktop"
+
+  install -Dm644 "$srcdir/t3code-icon.png" \
+    "$pkgdir/usr/share/icons/hicolor/1024x1024/apps/t3code.png"
+  ln -s t3code.png \
+    "$pkgdir/usr/share/icons/hicolor/1024x1024/apps/t3-code-desktop.png"
+  install -Dm644 "$srcdir/t3code-icon.png" \
+    "$pkgdir/usr/share/pixmaps/t3code.png"
+  ln -s t3code.png "$pkgdir/usr/share/pixmaps/t3-code-desktop.png"
+
+  install -Dm644 /dev/stdin "$pkgdir/usr/share/applications/t3code.desktop" << 'EOF'
+[Desktop Entry]
+Name=T3 Code
+Comment=T3 Code desktop build
+Exec=t3code %U
+Terminal=false
+Type=Application
+Icon=t3code
+StartupWMClass=t3code
+Categories=Development;
+EOF
+
+  install -Dm644 "$srcdir/LICENSE" "$pkgdir/usr/share/licenses/$pkgname/LICENSE"
+}