Configure GitHub Actions workflows to maximize reliability and maintainability. Follow these key practices: 1. **Always test with latest patches**: Use `check-latest: true` when setting up language environments to ensure you're testing with the most recent patch versions rather than potentially outdated cached versions. ```yaml - uses: actions/setup-python@v5 with: python-version: '3.12' check-latest: true ``` 2. **Define complete job dependencies**: Ensure publication jobs depend on all build and test jobs to prevent publishing artifacts if any part of the build process fails. ```yaml publish-to-pypi: needs: [create-sdist, build-wheels, build-wheel-pyodide] ``` 3. **Use readable matrix configurations**: Consider using `include` rather than `exclude` when it results in clearer, more maintainable matrix definitions for cross-platform testing. ```yaml matrix: package: [polars, polars-lts-cpu, polars-u64-idx] os: [ubuntu-latest, macos-13] architecture: [x86-64, aarch64] include: - os: windows-latest architecture: x86-64 - os: windows-arm64-16gb architecture: aarch64 ``` These practices help create reliable CI pipelines that catch issues early and prevent problematic releases.