I’ve done quite a lot of work on version management on structured data (in my case this was for a version managed GIS database) and it’s not an easy problem, an

I’ve done quite a lot of work on version management on structured data (in my case this was for a version managed GIS database) and it’s not an easy problem, and is likely even harder with something like an AST that is generated from a text file and so does not preserve the identity of nodes. I’m not saying that it’s impossible, but it is more work and requires more tooling around it than people think, and it keeps coming up here and other places as a, “really good idea.”