I hope rust becomes more mainstream in companies. At the moment it seems like a lot of smaller components are implemented in rust, to allow employees to get familiar with it.
Rust is mainstream at Cloudflare. It's used for many new projects. New projects naturally start small.
There are millions of lines of existing production code in other languages, but they won't get rewritten. Even if they would be better in Rust, there's a high opportunity cost of rewriting existing code that works, instead of spending the effort on adding value elsewhere.
There are millions of lines of existing production code in other languages, but they won't get rewritten. Even if they would be better in Rust, there's a high opportunity cost of rewriting existing code that works, instead of spending the effort on adding value elsewhere.