Comment by frumiousirc

> I really wish Ruff would introduce something similar to Nix’s stateVersion

Two approaches:

You can pin the version of `ruff` in `pyproject.toml`.

You, to let ruff command version advance but pin the settings to a prior version:

    uvx ruff@0.15.22 check --isolated --show-settings | flat2toml > pinned.toml
    

The `flat2toml` script is left as an exercise. Then in `ruff.toml`:

    extend = "pinned.toml"