what about Bluetooth?

[2bndy5]

We should support the cheap BLE Serial modules via UART bus; 1 for RX-ing commands, and 1 for TX-ing. It may be possible to use Bluetooth modules if they are builtin or the MCU is Bluetooth compatible (nRF52840 based boards).

Alternative Leads

Outside of that, I think we can just use Linux Bluetooth stack to manage the devices and just grab events with python-evdev. I know CircuitPython's bleio API seems to follow IanHarvey's bluepy (for CPython) API (bluepy github). I am interested in using a webapp server running on the pi to manage the Bluetooth Devices "Trusted" list on Linux. Windows may need more research, but I've had success using a "Serial Monitor" on Windows with its builtin Bluetooth module acting as a Bluetooth Serial to my Phone's and Raspberry Pi's builtin Bluetooth modules