Code for Raspberry Pi devices running Retro.
retro-base-server: Bun + Elysia server for Pi 5 base station.retro-base-browser: React UI in kiosk mode for touchscreen interface.retro-base-sip: Thin wrapper around SIP client on Pi 5.retro-handset: SIP softphone + operator trigger logic on Pi Zero 2 W.
All components share device-local state, audio interface code, and control flow. Uses Bun workspaces.