This project is specifically about publishing test cases for package managers -- it's not a package manager or a registry itself. We use it in uv [1] to test th

This project is specifically about publishing test cases for package managers -- it's not a package manager or a registry itself. We use it in uv [1] to test that our resolver is spec compliant. pip also explored using it for the same reason. [1] https://github.com/astral-sh/uv https://github.com/astral-sh/uv [2] https://github.com/pypa/pip/pull/12580 https://github.com/pypa/pip/pull/12580