Did you manage to program a pin as an output and drive it with another output?

Possible. Likely. Okay, I admit, your signature hits the nail on the head. I just gained ~$40 (1 chip, two PSUs) worth of experience.
he ended up with 'OTORL' branded backwards across a now-shiny fingertip

Guess I was still lucky then.
Replace the FPGA, find out what the maximum current it should ever take in normal circumstances is, and put a fuse of just over that value in the power feed to the board.

I'll make sure to do that. Don't want to loose another PSU.
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_______ Thomas