You can absolutely add React piecemeal to an existing page. That's actually how Facebook does it. You just call `ReactDOM.render()` multiple times, with diffe

You can absolutely add React piecemeal to an existing page. That's actually how Facebook does it. You just call `ReactDOM.render()` multiple times, with different target parent nodes. I'm doing it at work in an app that's still 80% Backbone. We're replacing Backbone Views piecemeal, with each chunk becoming a separate React component tree [0]. It's certainly easier if it's all one big React app from page load, though. I haven't used React Native myself, but I _think_ you can use RN in a similar way. I think I remember reading that the Facebook app uses RN for certain pages, but not others. [0] https://blog.isquaredsoftware.com/2017/07/react-redux-backbone-integration/ https://blog.isquaredsoftware.com/2017/07/react-redux-backbo...