My Oracle Cloud ARM box is gone. Not crashed, not out of memory — just stopped, because OCI has trimmed the Always Free allowance for Ampere A1.
Mine was running at 4 OCPU and 24 GB of RAM, which is now over the line. 
And it isn't only the instance. The quotas on the account came back as zero too, so there's nothing left to rebuild with — certainly not at the size I had before.
The one thing that saved me is backups. The blog is sitting on the NAS at home now, with Cloudflare in front of it. No idea how it feels from the outside; if pages drag for you, that's the reason. Feedback on the speed is welcome.
For the moment I'm just watching how this plays out. The longer-term server plan needs some actual thought behind it rather than a quick patch.
Still, it's a decent reminder of what you're really signing up for with a free tier. The hardware was generous while it lasted, but the terms belong to the provider, and the notice doesn't always come with much warning. Anyone treating a free instance as their only home for a project should probably assume the ceiling can drop at any time — keep a copy of everything somewhere you actually control.
The server decision can wait a few days.