React Native proves the success of running React other than browsers. The official supported frameworks from Facebook are only iOS and Android. There were some other platforms maintained by third-party developers, but these forks sometimes run with older React Native versions. The main reason is the difficulty to follow rapidly changed upstream code. From the upcoming React Native new architecture, there will be more platform-independent shared implementations and more abstraction layers. Let's see if we could extend React Native to some new platforms benefiting from the new architecture.
Falling in love with React Native from 2016, Kudo's daily work however is not major in RN but Puffin Browser development. Kudo did some side projects like react-native-v8 and react-native-js-benchmark, his is the React Native developer who don't write React.