A split 5x7 keyboard with 3 thumb keys. Made by Unikeyboard.
Keyboard Maintainer: IslandMan93
Hardware Supported: Pro Micro
Hardware Availability: Diverge 3
Make example for this keyboard (after setting up your build environment):
make unikeyboard/diverge3:default
Or for the Workman layout:
make unikeyboard/diverge3:workman
See build environment setup then the make instructions for more information.
Reflashing the stock firmware is pretty easy. Just follow the same steps in the original guide. You will have to manually reset the Pro Micro (by shorting the GND and RST pins) during the upload step. Then reapply your keymap through Arbites.