Certain key features of GitLab are not included in reference architecture that I believe should be: - Container registry https://gitlab.com/gitlab-org/gitlab/-/issues/468094 - Pages - Reply by Email - Shared runner - Advanced search - GitLab agent service? may be working out of box Debatable: - Kroki Recommend promoting this to epic. See also https://docs.gitlab.com/ee/development/architecture.html