https://github.com/kanefron5/keyboard-manual
https://github.com/wannabecoffeenerd/HillSideView
https://github.com/infused-kim/kb_zmk_ps2_mouse_trackpoint_driver
-- 20키보드 제작방법 blob:https://makerworld.com/8a0d54aa-9d42-405d-9c09-4ee64951fae1