Wanted: Adult Supervision for the new guy pretty please

I do it with no problem, but it’s probably safer to power off. I usually hit restart the board after inserting it, but I have a bunch of ESP32s and am not really concerned with having to replace it. I don’t know what the official line is, but when in doubt, power it down before doing anything that touches the board.

I think you have the wrong post processor. That one is probably for the Marlin-based boards.

You probably want to check out this thread

FluidNC can handle workspaces, but the Fusion post-processor can’t. There’s some info about it in that thread