Identify your logic with URI, apply any number of composable asynchronous or synchronous handlers using intuitive syntax and return anything as a result, all that with powerful and flexible error handling and testing.

In handlers execute any code that can potentially change your main flow of execution or to get any dependencies and then create cleaner models to work with inherited widgets, streams pattern as you used to.

Idea for handling events in that way comes from Vertx.
Routex in combination with dart and hot reload is worth of programmers attention.
It's amazing experience if you are interested in flutter and mobile development.