I love litestream. I've used it with pocketbase and it works. sqlite is a great building block for almost everything.

Does anyone know whether you could use this to stitch together a bunch of .db files (that share the same schema) in an ad-hoc way?

For example, if I decided I wanted to synchronize my friend's .db file, could I enable this using litestream? And, what if my friend wanted to sync two of his friends' .db files, but I'm only interested in his changes, not theirs? I assume this kind of fan out is not possible, but it would be fun if so.