Continuous Integration / Continuous Delivery (CI/CD) has long been the domain of DevOps experts, but with GitHub Actions, it's easier to bring CI/CD directly into your workflow from your repository. GitHub Actions simplifies CI/CD setup, allows you to respond to any webhook on GitHub, offers community-powered workflows, and supports any platform, language, and cloud. Building a CI/CD pipeline with GitHub Actions involves creating or choosing a repository, opening GitHub Actions in your repository, making changes to trigger the pipeline, and using the workflow visualizer and live logs for monitoring.