I have just added the CI scripts and testlist files in https://github.com/apache/incubator-nuttx-testing/pull/3 And asked XiaoXiang help to create Nuttx Nightly build job in builds.apache.org before. But it's just a freestyle CI job which call cibuild.sh simply. Once CI script and testlist file verify well. It would be better if it could be integrated into the pipeline definition you mentioned. You could help to use the pipeline way if access granted. Let's work together on it :)
Perhaps Miguel could provide the review of PR3. I will be happy to finish the merge after some review is provided.
Once it has been merged, both you and Miguel can continue the development with PRs. But we need to find someone competent to provide review.
Greg