GitLab CI/CD provides integrated continuous integration and deployment pipelines directly in GitLab repositories, automating workflows based on Git events and repository activity. As the creator of CoreUI, a widely used open-source UI library, I’ve implemented GitLab CI pipelines in enterprise projects throughout my 25 years of development experience. The most effective approach is creating a .gitlab-ci.yml file in the repository root that defines pipeline stages and jobs. This method enables automatic testing, building, and deployment on every Git push with parallel job execution and artifact management.