Used it for 30 minutes last night, hasn't turned on since.
Some web searches suggest reflashing it might fix the issue (it's a known problem) but that will have to wait for when I'm home as github is blocked by my employer and I need some tools from there to move the image over.
At least I was able to download the image off of archive . org.
Also: I'm learning, which is what I wanted out of this purchase.
... just not what I thought I'd be learning.
Multiple attempts to reflash failed horribly (It's what one gets when looking at solutions from 2016...), but I found one that worked ... eventually.
Multiple fel timeouts, but it's currently writing to the PocketC.H.I.P. so ... fingers crossed?
I wonder if a USB 2 hub properly downgrades everything...