jac-desktop Release Notes#

jac-desktop 0.2.0 (Latest Release)#

PyTauri/PyInstaller replaced by a Jac-native desktop host: The desktop target is now Jac-native. jac build --client desktop builds your cl bundle and compiles a single native host (jac nacompile) that embeds the OS webview to render it - no Rust toolchain, no PyInstaller sidecar, no separate process. Output is one self-contained binary under .jac/client/desktop/.
Removed: the PyTauri shell, the PyInstaller sidecar, the jac desktop plugin CLI (Tauri plugin catalog), and the pytauri-wheel/anyio/pyinstaller dependencies. There is no longer a jac setup desktop step or src-pytauri/ scaffold.
Added: the native webview binding + build tooling under jac_desktop/native/webview/, with a dependency-free test suite. The host embeds CPython to serve the bundle on loopback (and to host sv in-process).
Config: [plugins.desktop] keeps app identity + [plugins.desktop.window] geometry; the Tauri-plugin / sidecar config fields are gone.
See issue #6436.

Feature: jac-desktop plugin: New PyTauri-based desktop target plugin with three entry points: jac desktop (CLI), desktop_plugin_config (schema), and jac_client group desktop (runtime get_client_targets hook on jac-client's plugin manager).
Feature: [plugins.desktop] configuration: Desktop app metadata, window geometry, sidecar plugin bundling, and Tauri plugin ids live under [plugins.desktop] in jac.toml, using the same PluginConfigBase pattern as jac-scale and jac-client.
Feature: jac desktop plugin commands: list, add, remove, and sync manage [plugins.desktop].tauri_plugins, regenerate capabilities/ and sync matching @tauri-apps/plugin-* npm dependencies. The src-pytauri/app.py stub is stable and delegates to jac_desktop.runtime.

Docs: jac-desktop reference: New dedicated reference page at reference/plugins/jac-desktop.md (nav under Full-Stack Development). Desktop-specific content moved out of jac-client; tutorial and CLI cross-link to the new page.

Initial release of jac-desktop, the native desktop target and PyTauri plugin manager for Jac, split out of jac-client.

Desktop build target: Registers a desktop target with jac-client's target registry, so jac setup desktop, jac build --client desktop, and jac start --client desktop --dev work once the package is installed -- no Rust toolchain required (built on PyTauri).
Plugin manager CLI: jac desktop plugin list/add/remove/sync manages the tauri plugins an app links against, editing [plugins.desktop].tauri_plugins in jac.toml and regenerating capabilities + npm wiring -- without opening a Python file.
Sidecar bundling: The Jac backend is frozen to a standalone PyInstaller binary; the PyTauri webview shell runs via python app.py with pytauri-wheel.
Plugin system: Full Jac plugin exposing jac and jac_client entry points (JacCmd, JacDesktopPluginConfig, JacDesktopPlugin).