Maybe its just me but I'm not quite understanding what's the total practical idea here - especially with the ones on the left
Can you post a picture of the case in question with maybe paper prints of your PCB designs stuck on the pins?
Yep - no need for power of a PiHaving a cheap microcontroller per stepper, or covering a few steppers,
It might have done - I think I remember disabling it because I couldn't get it to display the custom res of 1900x900 that i was used to using over VNCWhoa, your Pi4? Buster is supposed to have Fake KMS enabled by default.