Unraid “supports” docker compose. You can install and use it but you won’t be able to utilize how unraid handles docker containers.
All that unraid does is make docker more accessible for the normal user. In the end the container template constructs a docker run command.
So you could use portainer to manage stacks through a webui or install compose and have to SSH into the unraid server all the time.
Could also be “Continous Integration” (from CI/CD - Continous integration/Continous deployment/delivery)
judging by the “Why build a new CI?” section their old “CI” was built on Azure DevOps so I would go with Continous Integration here.