Every time I started a new Phoenix application, it took me quite a while to remember how to get everything set up in Phoenix in order to display a React component. Beyond that, most of the tutorials I found that dealt with React and Brunch (vs Webpack) only rendered a single component. I’m more interested in React sprinkles in my app and the global rendering on every page load wasn’t working for me. I saw a hole in the current offerings of packages dealing with Phoenix and React and I decided to fill it.

http://geoffreylessel.com/2017/introducing-react-phoenix/