Repetier for CTC:
It is currently on first pull request.
I tried to adapt repetier to my home-built delta and found it easily hackable. So I gave it a try. Primary goal was native gcode support.
But it was suprised by less noise and vibrations and - maybe - faster and finer grained curves.
Key support is ok, but currently no RGB driver. I don’t have those chips on my board. I can implement it, but somone else has to test…