[fmt](🔗): autoformat source code.

[lint](🔗): lint source code in check-only mode.

[package](🔗): package your code into an asset, e.g. a wheel or a PEX file.

[repl](🔗): open a REPL (standard shell or IPython).

[run](🔗): run an executable or script.

[test](🔗): run tests with Pytest.

[check](🔗): run MyPy.