Earlier quoted context omitted.
For a company that got so much out of NGINX for years this is disappointing.
NGINX was great for us for a long time. But there comes a time where your needs and their future plans diverge. We couldn’t keep maintaining a fork and we had features that would have meant a huge effort to shoehorn into the NGINX architecture. And NGINX is written in C and we really wanted to use less memory-unsafe languages after Cloudbleed.
This is a massive segue, but where would memory-unsafe languages be acceptable for use at Cloudflare? I'm assuming existing software that needs to be maintained would be one of the them but what about low-level firmware, kernel code, and so on? Would Rust would a replacement to C in those areas too?