The Quark PCB is a modified layout for the Planck by OLKB. It's similar to a Planck, but the bottom row was designed to be more useable-larger than 1u keys.

Keyboard Maintainer: Nasp
Hardware Supported: Planck
Hardware Availability: https://forms.gle/ZpGtQjBNtsbuSV767

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

make checkerboards/quark:default

See the build environment setup and the make instructions for more information. Brand new to QMK? Start with our Complete Newbs Guide.