True, it's not as low resource as a single file. But with the official Alpine based images it's not too bad. For self contained app storage definitely would go

True, it's not as low resource as a single file. But with the official Alpine based images it's not too bad. For self contained app storage definitely would go with sqlite, but any database that needs multiple users (like a service website even if it doesn't have many users yet) I would go with postgres.