All my documents, music, databases, env vars + configuration from both hosts. I specifically don’t back up movies and tv shows because they’re restorable by downloading again.
I don’t have any photos in my stack anywhere. That might be why it’s so low.
Currently a total of 1.37 GB, spread over multiple backups. That’s two host, running among other things home assistant, paperless and *arr stack (though media is not backed up).
Cloudflare has a free tier of 10 GB. I believe BorgBase is the same.
Restic. Nightly backups to local, then Cloudflare R2, then BorgBase. All free.
The whole config is in git. The data gets backed up nightly by restic and pushed to a local backup site, and then to 2 separate offsite backup locations, fulfilling 3-2-1.
Every month on the first day there’s a restore test.