software-mansion/react-native-reanimated ? reverse-engineered prompt

Build me a React Native library that makes animations and gesture driven interactions feel smooth, plus a small companion package for running JavaScript work on another thread.

I want this to work with the newest React Native architecture, and I’d like a clean TypeScript codebase with a good developer experience. Please include a simple example app I can run to see the animations in action, things like moving, fading, springy transitions, and interactive gesture based effects.

Set it up so the core API feels easy to use in real apps, with clear docs or usage examples where it helps. If you need to check current React Native docs online while wiring up the latest architecture details, go ahead. Keep it practical, modern, and ready for people to try out locally without a lot of setup friction.