XD004 == 4-keys board  Keyboard Maintainer: QMK Community Hardware Supported: XD004 PCB v1.0 Hardware Availability: [KPRepublic](https://kprepublic.com/products/xd004-xiudi-4-custom-mechanical-keyboard-4-keys-switch-leds-pcb-programmed-hot-swappable-macro-key-silver-case-micro-port) To build with a default keymap (not useful at all, have a look at other keymaps): ```make xd004/v1:default``` 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).