I did not find a cfg for this board, the bad thing is that I think the motors share enable and I don’t know if it is possible to use it with klipper,
In this case I am only interested in moving the motors, nothing more, since I want to try to make a CNC
Shared single enable pin is not an problem at all, most probably you can make klipper MCU firmware to run in Uno and drive 3-4 axis but not at very high speeds (depend on required stepping rate) https://www.klipper3d.org/Features.html#step-benchmarks