Rust

Rust delivers performance that matches C++ with memory safety guarantees that C++ can't offer. The tooling — Cargo, clippy, rust-analyzer — is excellent. The developer experience friction is real but decreasing.

The sweet spots are clear: CLI tools, high-performance services, WebAssembly modules, and systems programming. Tools like Oxlint, Vite's internals, and Qdrant are written in Rust for good reason. For typical web application backends, TypeScript remains more productive, but Rust is the right answer when performance is a hard requirement.