QMK firmware for this can be found on my github: https://github.com/foureight84/qmk_firmware/tree/sofle_foure...
Also, if you want to integrate the Pimoroni Track ball to the Sofle Keyboard, I've written a guide: https://github.com/foureight84/sofle-keyboard-pimoroni
The original code was done by j-inc: https://github.com/qmk/qmk_firmware/tree/master/keyboards/ky...
QMK firmware for this can be found on my github: https://github.com/foureight84/qmk_firmware/tree/sofle_foure...
Also, if you want to integrate the Pimoroni Track ball to the Sofle Keyboard, I've written a guide: https://github.com/foureight84/sofle-keyboard-pimoroni
The original code was done by j-inc: https://github.com/qmk/qmk_firmware/tree/master/keyboards/ky...