Files come with certain restrictions, which don't matter for certain types of applications. But for others they do.

I think it boils down to provenance and concurrency. If we edit the same line a file, that's ba merge conflict when it really should be simple and something I shouldn't have to bother with. And when we do do the same line edit, I'd love to have provenance on that data.

Granted, those aren't local first thing exactly, but I think there will be apps that want all of that.