Folder organization in Flutter

Or “Where did I put that file…?”

When I started coding in flutter, I arranged my folders as in my first tutorial:

-model 
  -SomeModel.dart
-pages
  -page1
    -page1Controller.dart
    -Page1Screen.dart
  -page2
-services 
  -DataService.dart
  -AnotherDataService.dart
-widgets 
  -Widget1.dart

I learned soon after that dart style is to have filenames in lower case with underscore, that is some_model.dart instead of SomeModel.dart. But that is easy to change.

The bigger problem is that when you have a slightly more complex app, this method is terrible. Each page is in a different folder, but some pages use the same widgets and models and some don’t. So to find the model used by page1 I need to go to the models folder, and there look for... what? Are all the models in the top level? Do I put folders for page screens in there as well?

As the models are used by feature, it makes sense to split them into folders according to feature:

-models
  -feature1
    -model_1.dart
    -model_2.dart
  -feature2
    -model_3.dart

However, now what? Do I add these subfolders in each of the main folders? This is absurd.