The Firefox repo is 27% C++, 14% C, and 9.5% Rust - https://4e6.github.io/firefox-lang-stats/ https://4e6.github.io/firefox-lang-stats/ AWS wrote Firecracker wh

The Firefox repo is 27% C++, 14% C, and 9.5% Rust - https://4e6.github.io/firefox-lang-stats/ https://4e6.github.io/firefox-lang-stats/ AWS wrote Firecracker which powers AWS Lamba - https://github.com/firecracker-microvm/firecracker https://github.com/firecracker-microvm/firecracker Cloudflare just replaced nginx with an in-house reverse proxy written in Rust called Pingora (not yet open source) Facebook rewrote Mercurial in Rust to help scale their monorepo (called Mononoke, now part of their EdenSCM project) Dropbox rewrote their sync client in Rust, and they wrote their block storage service (Magic Pocket) in it. A significant portion of Google's new Fuchsia OS is written in Rust, and it is currently powering Nest devices NPM's backend is written in rust curl can now use Rust's hyper library for making http requests