Based on this project:
New split keyboard with trackball!
I built this over a month ago and have been using it daily. (especially clutch since I’ve developed RSI / carpel tunnel from spending too much time on the computer).
Building this was an absolute PITA (pain in the ass) - would not recommend to anybody. Am not surprised people pay $400 for it.
This PCB literally needs to be flexed into position before you can solder on switches 🥲🔫