How to write better Django code

For better Django code quality:

1. Set clear boundaries between apps.
2. Use services with public methods to reduce coupling.
3. Adopt a three-tier architecture or combine service and persistence layers.
4. Favor unit tests over integration ones and use Pytest with pytest-django for efficient testing.
5. Avoid direct model usage in views/templates.
6. Separate validation from database operations using Form/Serializer classes or libraries like marshmallow.
7. Use type annotations and third-party stubs for improved readability and IDE support.