Exactly this… When you open the foo directory the _foo.ex file sorts to the top as the entrypoint for the namespace MyApp.Foo. All the other modules in the namespace like MyApp.Foo.Bar appear below. Visually I really like seeing the related files in a “context” close together in the same directory with the entrypoint on top. The Elixir convention makes sense from a parent->child hierarchical standpoint mapping module names to directory structure but as the number of namespaces grows I definitely prefer your suggestion.
Elixir doesn’t really care how you structure the source file hierarchy as all the modules in the app get compiled to a flat directory of .beam files… and it’s very easy to move code/files around later if you change your mind. So I’d say if your team likes it then go for it!
