If I understand correctly, this is like SQLite, but Postgres. I love SQLite, but sometimes I need a little more. So, no more saving Date as text and we have arrays, jsonb etc and all the good stuff from Postgres. Am I right ?
Every use case and expectations are different IMO. And yes if it's a file system , you can always grab a way to keep a snapshot. Too early for this project to deliver everything at one go.