My venerable #prusa MK3S+ was resurrected from its ~3-year slumber.
Updated the firmware to the most recent one, dusted off the print bed, put glue on the bed, loaded up filament, and tried to print an old GCODE from the SD card, a full-plate sheet to check for leveling.
That particular file might have been generated for the MK3 (this printer was upgraded from that model), and it threw out SEVERAL errors, either related to leveling (I suspect it might have to do with the fact that new firmware expects to only level around the part, not the whole bed) or temperature.
Sliced a #Benchy, slapped it onto the SD card, and it's now doing a ~1.5-hour print like it had never stopped a day.
I'll have to see if I can get PETG working, too. If so, I'll be able to print quite a bit more things than on an 18x18 bed
And I'll need to get a phone for it, for Octo4a.