# CRBN A compact 40% (12x4) ortholinear keyboard kit made by Polarity Works and sold by keygem * Keyboard Maintainer: [ReFil](https://github.com/ReFil) * Hardware Supported: CRBN kit with a pro micro * Hardware Availability: [Keygem](https://keygem.store/collections/group-buys/products/group-buy-featherlight-40-kit) Support for this keyboard is available in the Polarity Works [discord](https://discord.gg/NysAH3Gser) Make example for this keyboard (after setting up your build environment): make crbn:default Flashing example for this keyboard: make crbn:default:flash 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).