Technical requirements

The following additional folders are required in this chapter and should be created:

tozo
└── backend
    ├── src
    │   └── backend
    │       ├── migrations
    │       └── models
    └── tests
        └── models

Empty backend/src/backend/models/__init__.py and backend/tests/models/__init__.py files should also be created.

To follow the development in this chapter, use the companion repository, https://github.com/pgjones/tozo, and see the commits between the tags r1-ch3-start and r1-ch3-end.