Structure for apps:

app_name/ - The app directory contains the following files and folders:

• __init__.py - An empty file that marks the directory as a Python package.

• migrations/ - A folder that contains database migration files generated by Django's ORM.

• models.py - A file that defines the database models for the app.

• admin.py - A file that defines the app's admin interface.

• apps.py - A file that contains the app's configuration.

• tests.py - A file that contains the app's unit tests.

• views.py - A file that contains the app's view functions for processing HTTP requests.

• urls.py - A file that defines the app's URL routing.

• static/ - A folder that can be used to store static files like CSS, JavaScript, and images.

• templates/ - A folder that contains HTML templates used to render the app's views.

You usually have to add your own files / folders such as: urls.py, utils.py, mixins.py, templates, static etc.