... I went to the manual, thinking okay the thing has been through a lot in sixteen years or however long I've had it, might be time for a new fuse. And then I went "... wait."
Plugged it back in with its usual cord. Flipped the switch. Nothing. Pressed the pedal, and the motor hummed happily.
... yeah, I've been using the embroidery machine so much I literally forgot the only thing that my non-electronic sewing machine does when it "boots" is turn on the work light... which burned out. 🤦♀️