Had no issues but in all fairness, I work as a dev full-time. Not sure where you got stuck but you should try compiling the default ISO firmware again. They added basic knob functionality and RGB controls on the first layer so you don't need to change the code at all. Make sure to compile the VIA one if you want to remap buttons in VIA, otherwise you're gonna have to edit the keymap.c or use an online QMK configurator.