# Files

- [Application state and event handling](app-state.md) - How the App struct in src/app.rs holds UI state, routes AppEvent values (keys, WhatsApp, AI replies, image descriptions, reply timers, web panel), handles function keys, the list filter and chat deletion, toggles global and per-chat autoreply, and runs background tasks.
- [Runtime and event loop](runtime-and-event-loop.md) - Process startup in src/main.rs (including the --version flag and the build version embedded by build.rs), the tokio runtime, the two event channels, the input thread, the WhatsApp forwarder, the optional web panel thread and the draw/recv TUI loop.
- [Terminal UI rendering](terminal-ui.md) - How src/ui.rs draws the connecting, QR pairing and main screens with ratatui, including the filtered list with global autoreply marker, message formatting, wrapping, the input box and the footer with key help and build version.