I did have a report of someone trying to run thousands of SQLite databases with Litestream, however, Litestream is currently implemented using a polling mechani

I did have a report of someone trying to run thousands of SQLite databases with Litestream, however, Litestream is currently implemented using a polling mechanism so it gets expensive with a lot of databases. I'm going to switch it to use fsnotify so it will be feasible to run a ton of small databases but it doesn't work well right now. Litestream should work fine on larger databases. The long-running tests for Litestream run against databases between 1 to 10 GB. It uploads the full snapshot periodically (once a day by default) but it mostly just uploads the WAL changes which are typically quite small (~1KB for an LZ4 compressed page).