layout https://config.qmk.fm/#/crkbd/rev1/LAYOUT_split_3x6_3 write https://yushakobo.zendesk.com/hc/ja/articles/1500011696701--QMK-firmware%E3%81%AE%E6%9B%B8%E3%81%8D%E8%BE%BC%E3%81%BF-Pro-Micro-Web-Updater%E5%88%A9%E7%94%A8- --- 1. create layout 2. compile layout (layout page) 3. write a. upload .hex b. separate keyboard c. push button d. 'flash' button e. and 2 keyboard