I wince a little whenever I see an introductory tutorial for Postgres extensions using C. pgx allows you to write Rust, and has lots of features to make your code type safe https://github.com/zombodb/pgx
I wince a little when someone suggests to throw away battle-tested solutions written in C just because someone wrote and unproven alternative in Rust.
Yeah, pgx is quite impressive and is a great set of bindings with very accessible examples, etc. Definitely something to be aware of for people that prefer building things in Rust. Thanks for pointing it out here.
It does not work with recent versions of Postgres, it segfaults in some cases, and it has been mostly abandoned. Otherwise, it would be (and it has been) a great way to develop FDWs.
Yup, if someone picks up maintenance again then that can continue. But if that doesn't happen, we really need to stop mentioning/recommending it. I see it all over the damn internet, well after it became unmaintained.