Read and send Telegram messages directly from a Flipper Zero's screen. A FastAPI server on a
Raspberry Pi connects to the FAP application through an ESP32 Wi-Fi bridge.
The Flipper application includes an on-device keyboard, Cyrillic transliteration, paginated chats,
and full end-to-end message encryption.
Every message available to the bot is stored in the server database.
Traffic between the server and the Flipper is encrypted with a shared secret,
and a web UI allows browsing and deleting stored messages from a browser.
If Telegram access is normally blocked, only the server needs a VPN.