Comment by koverstreet

Yep, exactly this.

It's painful having to switch to another language to talk to the database, and ORMs are the worst kind of leaky abstractions. With Rust, we've finally got a systems language that's expressive enough to do a really good job with the API to an embedded database.

The only thing that's really missing is language support for properly ergonomic Cap'n Proto support - Swift has stuff in this vein already. That'd mean serializable ~native types with no serialization/deserialization overhead, and it's applicable to a lot of things; Swift developed the support so they could do proper dynamically linked libraries (including handling version skew).

If I might plug my project yet again (as if I don't do that enough :) - bcachefs has a high quality embedded database at its core, and one of the dreams has always been to turn that into a real general purpose database. Much of the remaining stuff for making it truly general purpose is stuff that we're going to want sooner or later for the filesystem anyways, and while it's all C today I've done a ton of work on refactoring and modernizing the codebase to hopefully make a Rust conversion tractable, in the not too distant future.

(Basically, with the cleanup attribute in modern C, you can do pseudo RAII that's good enough to eliminate goto error handling in most code. That's been the big obstacle to transitioning a C codebase to be "close enough" to what the Rust version would look like to make the conversion mostly syntactic, not a rewrite, and that work is mostly done in bcachefs).

The database project is very pie in the sky, but if the project gets big enough (it's been growing, slowly but steadily), that's the dream. One of them, anyways.

A big obstacle towards codebases that we can continue to understand, maintain and continue to improve over the next 100 years is giant monorepos, and anything we can do to split giant monorepos apart into smaller, cleaner reusable components is pure gold.