When developing with Mojo, it’s more elegant to modularise functionality into Apps, and this is the default behaviour of the Mojo server loader.
Apps serve as a collection of RequestHandlers, URL Mappings, Models and Templates that make up a set of functionality in your project.
To get started with an app in your project, you can use the mojo_manager.py helper application that will auto create your project folder for you:
python mojo_manager.py -a [YOUR_APP_NAME]
This will create an app folder with certain key files: