We use https://litestream.io/ from https://fly.io/ to run streaming backups to S3 for databases hosted on Datasette Cloud

nostr:npub18qdpy73ygsxgeg0p7qg6kxzry5hpn3cp4fsfhdw9a89arv5vx0psyg9564 extracted this out into a new datasette-litestream plugin, which makes it really easy to configure any Datasette instance to backup its databases