I took the time to deepen out the cases 4mm more so that I have more headroom for the pico to be inside. I made a quick QMK firmware to see how it works, and spent the next hour reading docs and trying to find out how to do split keyboards that follow my mirrored matrix. I couldn’t find that many resources, so I might just write my own code later, but I did somehow get it to show up in Vial?
Anyway I had spent too much time on QMK with no tangible results, so I took a break here.