Okay, I haven’t posted for a few months YEARS now – sorry!
I had been running this site on a (very) basic EC2 spot instance for a while, then I found out last month that the bid price was too low and it wouldn’t start. For some reason, AWS doesn’t let you just change the bid price – you have to create an entirely new spot instance. This isn’t that hard but if you haven’t done it for 4+ years, it’s a bit of a challenge.
Luckily I managed to get it all up and running, but it took looking at an AWS guide to get it to work.