Is there any eMMC or other non-volatile storage on the PCB? I tried looking through the PCB files but I don't have KiCad.

I've always wanted a keyboard with a keylogger inside the keyboard itself. That way it doesn't matter which OS or computer it is attached to, every keystroke is secretly logged inside the keyboard (to be dumped at a later time for examination)

Edit: looks like the microcontroller is an Atmel chip [0] which has either 16/32 KB of flash depending on which one. I'm not sure which the system76 keyboard uses. I'm assuming part of that flash is for the firmware itself, but maybe there is extra room for logs as well?

[0] https://github.com/system76/launch/blob/master/pcb/docs/Atme...