A compact 40% (12x4) ortholinear keyboard kit made and sold by OLKB and Massdrop. More info on qmk.fm
Keyboard Maintainer: Jack Humbert Hardware Supported: Planck PCB rev1, rev2, rev3, rev4, Teensy 2.0 Hardware Availability: OLKB.com, Massdrop
Make example for this keyboard (after setting up your build environment):
make planck-rev4-default
See build environment setup then the make instructions for more information.