This is a 40% split keyboard which has 3x6 vertically staggered keys and 4 thumbnail keys.
Make example for this keyboard (after setting up your build environment):
make yoichiro/lunakey_mini:default
Flashing example for this keyboard:
make yoichiro/lunakey_mini:default:flash
See the build environment setup and the make instructions for more information. Brand new to QMK? Start with our Complete Newbs Guide.