Everyone expects the flipper, no one expects the esp32 smartwatch:
https://image.nostr.build/f2e01f5aae7600f1d9d49433c432743457de45a09b70d5b3d2491e9c1b375150.jpg
Basically all the tools from https://github.com/Sor3nt/Flipper-Zero-ESP32-Port work with heavily modified FAP builder.