Um, never mind.
JLCPCB literally delivered the board the very next morning, so that was fun. I am sorry JLCPCB, get better tracking tho…

I finished up all of the soldering and put it in the case. Then when I tried to put KMK firmware on it, it had like 1 mb too little flash to hold it.

There is a way to get it down to a more manageable size for the RP 2040, but it involves decrying YML files and that exceeds my knowledge. If anyone knows about that kind of stuff, plz help…