And we're back!
Last night around 1 AM PST something maxed the CPU on our tiny virtual server. It was pegged so hard the machine was unresponsive. I restarted it, and it didn't come back up cleanly. Unable to get it to settle down, I went back to our last snapshot, which happened just before the machine went wild. (Maybe related to why it went wild?)
I was unable to stand that up either, and ended up upgrading that snapshot to the latest Mastodon code, which somehow unstuck it.