So it's basically using Git as an "append-only" (no update-in-place) database to then do time queries? It's not the first time I see people using Git that way.

So it's basically using Git as an "append-only" (no update-in-place) database to then do time queries? It's not the first time I see people using Git that way. EDIT: hmmm I realize in addition to that it's also a way to not have to do specific queries over time: the diff takes care of finding everything that changed (i.e. you don't have to say "I want to see how this and that values changed over time": the diff does it all). Nice.