--- id: tooling-integration title: Tooling Integration layout: docs permalink: tooling-integration.html prev: more-about-refs.html next: examples.html --- Every project uses a different system for building and deploying JavaScript. We've tried to make React as environment-agnostic as possible. ## React ### CDN-hosted React We provide CDN-hosted versions of React [on our download page](/react/downloads.html). These prebuilt files use the UMD module format. Dropping them in with a simple `