Lessons learned from a successful Rust rewrite

The article recounts the author's experience rewriting a C++ codebase to Rust at work. The rewrite was successful, improving code simplicity and reasoning. Rust's safety features eliminated common C++ issues, but challenges arose with unsafe Rust code, including potential undefined behavior. Cross-compilation, memory leak detection, and C API generation posed obstacles. The author found Rust's complexity, especially around FFI, to be a significant hurdle for some team members. While mostly satisfactory, using Rust with heavy C interop introduced friction and didn't fully solve all claimed problems.