1. fork this repository to your github account
2. to change your keymaps, go to https://nickcoutsos.github.io/keymap-editor/ and click commit changes after that
3. wait 2-5 minutes, and click the icon below, extract it to get arble-zmk.uf2

4. reset your PCB, short it with tweezer or click reset button twice, or press fn + tab, there will be NRF52BOOT on your explorer/finder
5. drag arble-zmk.uf2 to the removable disk drive
6. enjoy your arble!

thanks to alabahuy for making the PCB reality!