I think of building a modular bike computer.
- RPI zero for full linux support
- UART & CANbus support
- 12-72v input
- modular scripting support
- extension boards over CAnbus:
-- oled display
-- camera
-- distance sensor for cars that are overtaking too close
-- GPS
-- livetracker (lorawan)
-- livetracker (APRS)
-- lights/blinker/horn
-- ? Your idea
What would you like to have on a modular bike computer?