FOSS 'Ploopy' headphones
FOSS 'Ploopy' headphones

GitHub - ploopyco/headphones: A set of 3D-printed headphones, alongside a DAC/amp/EQ board powered by a Raspberry Pico.

Also if anyone knows how to design PCB boards https://github.com/ploopyco/headphones/issues/28
I have a ploopy mouse and it's utterly fantastic.
So many buttons and has QMK firmware so I have actual layers on my mouse!
This is the future
QMK?
Very configurable Open Source Keyboard (and mouse I guess) firmware