Here's a list of other resources covering similar topics:
- The Expo installation documentation at https://docs.expo.io/versions/latest/introduction/installation.html.
- Node.js Web Development at https://www.packtpub.com/mapt/book/web_development/9781785881503
- Introducing Hot Reloading - React Native at https://facebook.github.io/react-native/blog/2016/03/24/introducing-hot-reloading.html. This blog post from the React Native team describes how Hot Reloading works in depth.
- Publishing with Expo at https://docs.expo.io/versions/latest/guides/publishing.html. Expo has a publish feature that allows you to share your in-development React Native application with fellow developers by creating a persistent URL.
- Expo Snack at https://snack.expo.io. Similar to codepen.io or jsfiddle.net, Snack lets you live edit a React Native app in the browser!