This is fantastic.

I've been doing more Rust hacking at home and I genuinely think that this next decade will be just gangbusters for Rust; its gotten a lot of early adoption, and the next wave is going to be wild.

one of these days I'll work at a Rust shop, and I am hyped for that possibility. it'll be NICE.

it's only gotten a lot of adoption by hobbyists

AWS has written parts of major services (EC2, Lambda, S3, etc) in Rust.

The first additional language support for Linux Kernel was Rust on top of C.

Microsoft is rewriting their core kernel parts in Rust.

Asahi Linux drivers are written in Rust.

All new critical performance stuff in Cloudflare is written in Rust.

List goes on…

Edit: Many instead of all new from Cloudflare..

All new critical performance stuff in Cloudflare is written in Rust.

That's an exaggeration. Yes, we use Rust a lot and in performance critical areas but it's definitely not "all new critical performance stuff".

What other language or languages do you use at Cloudflare for new performance critical stuff?

Cloudflare Workers is C++. I would assume that a lot of the related things (KV, Durable Objects, etc) too.

https://github.com/cloudflare/workerd