A replacement PCB for Omnikey keyboards. (In theory) supports 101, 102, Plus, Ultra T, Ultra, Prime and Stellar, as well as customs.
Keyboard Maintainer: QMK Community and Henrik O. Sørensen
Hardware Supported: Omnikey(-ish) PCB
Hardware Availability: https://github.com/henrikosorensen/keyboard_pcbs/tree/master/omnikeyish_pcb
Make example for this keyboard (after setting up your build environment):