qmk_firmware/keyboards/prime_r/readme.md

Prime_R

A compact layout with the footprint of your typical 65% board, featuring a right mini-numpad. Produced by /u/holtenc at www.primekb.com

Additional resources here

Keyboard Maintainer: Andrew Heaston
Hardware Supported: prime_r pcb, ATmega32U4
Hardware Availability: Prime_KB

Make example for this keyboard (after setting up your build environment):

make prime_r:default

See build environment setup then the make instructions for more information.