Okay, so not “in progress”, but
here’s my last keyboard. Used lots of tools available to the keyboard community, but I laser cut the plate that holds the switches (and the one for the bottom, but that was no big deal), designed and 3D printed the side case, hand-wired the keys’ matrix, configured the keyboard software for the Raspberry Pi Pico microcontroller, and used infusible ink and the laser to turn blank keycaps into custom ones.