It will allow you to program anything you want for an expansion card or just to be used as a quick and sleek development board.
It will have a female type-c port for you to connect anything you need on it.
Example ideas:
- BLE Location Tracking to be able to find your device if lost
- Multifactor authentication key
- Power monitor/logger
- Wake or Lock device over Wifi/Bluetooth.
- Proximity Lock/Unlock
- …
Inspired by Adafruit Feather…
Interested? I can do the electrical design 