GitHub Actions in 2026: Automate Everything for Free (CI/CD Tutorial)

GitHub Actions is a free CI/CD platform integrated into GitHub that automates workflows via YAML files triggered by events like pushes and PRs. The tutorial covers practical workflows including Python linting/testing, auto-deployment to GitHub Pages, scheduled security scanning with Trivy, and multi-platform testing matrices. It highlights the free tier offering 2,000 minutes/month for private repos and unlimited use for public repos.