It’s the fastest way to create cross-platform apps. [ The InfoWorld Test Center review: 3 PhoneGap toolkits tame mobile app development | How are your HTML and JavaScript skills?

This is most apparent in the mobile world where more and more developers are building mobile apps with JavaScript, CSS, and HTML, then bundling them with a thin, native wrapper.

The prerequisite for using Reanimated 4 is the New Architecture for React Native, a framework for developing mobile apps with JavaScript.