You may find our direction page for CI/CD at GitLab interesting if you're looking to learn more about the possibilities involved here. We do all of our planning and roadmapping in public so you read a bit about our overall technical challenges and approach there, and drill down into the stages (CI, packaging, and CD) that make up the capabilities within GitLab, each of which have their own videos and other planning content.

https://about.gitlab.com/direction/cicd/