`rnx-kit` is a Microsoft‑maintained suite of production‑grade tooling that extends React Native with dependency alignment, cloud‑based native builds, enhanced Metro bundling, and opinionated defaults, all accessible via a unified CLI. It’s aimed at large‑scale React Native developers and teams who want to streamline their workflow, reduce native‑toolchain setup, and maintain consistency across complex projects. The project is open‑source and ready for community contributions.