New PCB arrived, first test to (not) let the magic smoke out worked.
I’ll probably do another revision to add space for a zener diode on the board input just in case(tm), and an on/off switch, and move the 3.3v, 5v, gnd to a separate pin header than the gpio’s, and maybe finalize the SD card pins, but it works, and i’m happy(ish).
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