I finally started migrating our app from Heroku to Hetzner. Started by moving Postgres, and boy, what a difference in performance. I pay 1/5th of what I previously paid, and performance is through the roof. Like, as if we had rewritten our Rails app in Rust (metaphorically speaking). I know that in theory you get much more from managed postgres than a simple self-managed server, but I have pgbouncer and Wal-G set up, and it really seems like it's not that hard to manage that instance. Most of all, we were really hitting performance limits on Heroku, not theoretical "what if the server goes down" but real ones that users could tell every day.

Will move the app server itself next (basic Rails). Really wish I had done the move earlier. Hetzner is like cheating for indie devs.