The pict-rs upgrade is ongoing.
From what I can tell it’ll be about another 5 hours. I’m going to have to go to bed and check on it in the morning.
Unfortunately the stock-standard lemmy-ui doesn’t like it that pict-rs is migrating to a new version of database and not serving images, so it’s stubbornly just not working at all.
Apparently I was wrong, it’s decided it’s done and working again now.