@Phaedrux Maybe? Part of the complicating factors is that the Rostock is at my makerspace and I don't have easy access. Was hoping for a software only solution, but I think there isn't one.

I had a LLM jerk me around for a whole day saying that DSF_SIMULATION=1 is some magic environment variable that would let me setup a fake software only congif, but that didn't work. The promise of it is what I was looking for, though.

Getting into an older Rostock running DWC. Wanting to build and work on the filament loading macros. Before I run GCODE through the machine I'd like to test somewhere I won't break anything.

I have Duet setup on my own r pi 5. Is there anything I can do to fake it into thinking there's a controller board attached? Or, some other avenue to have a sandbox for GCODE macros?

Basically, I just want to play with the GCODE without worrying about driving a nozzle through a bed.