Funny. I'm (OP) considering moving to web projects cause those are more conducive to permanent WFH. Hardware requires physical presence too often.
That way I could code from the comfort of my home and watch the axes (this was for a CAT scanner big enough for a horse) move and make sure I didn't ram anything against the physical stops. Plus it was helpful to make sure no one had their hands in the mechanism before I started telling large servomotors to move around.
It worked really well as long as they remembered to leave the lights on before they went home for the day.
The fun I had almost made up for my ridiculously low bid!
Eager to read about it here on HN top in a few months Dmitry!