Today they rolled some kind of upgrade and my backend become unreachable for hours, this is not my first problem with them. I assembled a quick docker-compose.yml and moved to Hetzner. Fly is pushing a lot of blog worthy stuff but it is not production ready.

A plumber's house always has a dripping tap.

https://status.flyio.net/ currently shows a partial outage.

The two are not mutually exclusive, it's probably not an issue with horizontal scaling.