Read this file at the start of every session and every time your context window is full.
Run python commands with "uv run" such as "uv run python manage.py test emmsap2.tests". Run that test after every substantive test.
Assume that someone else may have edited files since your last prompt. Reread any files you are going to write before changing them.
Run uvx ruff check emmsap2 to test linting.