Ronel ("Remotely-Operated Native Expression Language") is a simple library and notation framework using HTML-over-the-wire to build native Flutter apps, created and maintained by Mark Schellhas in 2025.

The idea came from our own frustration of having to build an API for a mobile app.
We have a web app, containing the application logic and views. But we also have a mobile app, for which we now had to duplicate the logic and views - TWICE (once as json for the API, and again as Dart widgets for Flutter screens)!

But why?
Mostly out of convention. A convention that doesn't make any sense for small teams building a product or service. This is where Ronel comes in.

Your web app is now your presentation layer that the Flutter app reads, and renders screens, widgets and behaviours from. No need for APIs. No need for duplication. Easier to maintain. And faster to ship. Welcome to Ronel. I hope you enjoy using it.