AMJ40 === DIY/Assembled compact 40% keyboard. Keyboard Maintainer: QMK Community Hardware Supported: AMJ40 PCB Hardware Availability: https://geekhack.org/index.php?topic=87961.0 Make example for this keyboard (after setting up your build environment): make amj40:default See [build environment setup](https://docs.qmk.fm/build_environment_setup.html) then the [make instructions](https://docs.qmk.fm/make_instructions.html) for more information.