# mithril ![mithril](https://i.imgur.com/F0h5OY6.jpg) *A custom split ortholinear keyboard (4x6 + 3 thumb keys per half) with per-key RGB.* * Keyboard Maintainer: [Javier San Félix Guajardo](https://github.com/sanfeps) * Hardware Supported: Mithril rev1 PCB, ATmega32U4 (Caterina bootloader), split halves with serial sync * Hardware Availability: PCB design, plate files and case at [github.com/sanfeps/mithril_kb](https://github.com/sanfeps/mithril_kb) Make example for this keyboard (after setting up your build environment): make mithril/rev1:default Flashing example for this keyboard: make mithril/rev1: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). ## Bootloader Enter the bootloader in 3 ways: * **Bootmagic reset**: * **Left half**: hold down `Esc` (matrix position `0,0` — top-outer key) and plug in the keyboard. * **Right half**: hold down the top-outer key (`?` on the base layer, matrix position `5,0`) and plug in the keyboard. * **Physical reset button**: Briefly press the button on the back of the PCB - some may have pads you must short instead * **Keycode in layout**: Press the key mapped to `QK_BOOT` if it is available (mapped to the bottom-right key on layer 2 of the default keymap)