This looks really great to me, and I can't wait to try it. I've been using buildbot for extremely light-weight CI/CD server that basically just triggers Ansible scripts on git changes. Not at all the way buildbot was designed to work, but very quick and easy to manage.
This looks like a tool that could be a lot closer to what I want to do and designed to do it that way.
Also, is the repo being moved somewhere? https://github.com/vespene/vespene is 404.