> I don't know how stable the file formats are, or if you'd have to do regular migrations.

Reading this made me wonder why there isn't a binary file format that has a mandatory header with a plain text description about itself in it. I can't imagine the SQLITE format being too complicated, so it would probably fit into 8k maximum. Basically a way to make it easier to create a parser, if the original description or source code is lost. Given that the SQLITE format is everywhere it's probably not too relevant in that case, but I still wonder if there's any format that does something like this.