# Fa widgets > Sample JS widgets for the Fa agent: small apps written against the > js_widget_runtime `jsr` API, executed inside Fa's sandboxed interpreter. > Shell access, network calls and system services are default-denied; the > widget's manifest declares what it uses and the app prompts the user. ## Catalog - Machine-readable catalog (schemaVersion 1): https://github.com/IstiN/fa_widgets/releases/latest/download/catalog.json - Per-widget artifacts: `-.zip` next to it in the same release, immutable version tags `-v` for pinning. - Sources & contribution guide: https://github.com/IstiN/fa_widgets Install via the Fa app: Plugins → Get widgets. - [Widget gallery](https://fa1.dev/widgets/)