[epolanski]

I remember using unison few years ago and it had that cool idea that your codebase was saved as symbols on a database.

But I don't see any references to it anymore.

[rlmark]

That's still the case in Unison! This particular post doesn't dive into the codebase format, but the core idea is the same: Unison hashes your code by its AST and stores it in a database.