BKF, Base Kit Forty, is a 40% style keyboard that is fully compatbile with a standard base kit of keycaps with 3 different spacebar configurations. It supports both standard R3 1.75u as well as stepped R3 1.75u on the left side. The key in the top right corner also sports rotary encoder support.
See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).