I wrote something about this a while back; some of it's GitHub specific but not all. I have since moved the project on to an independent .org as a static site which checks out the project and runs the automated toolkit against it, deployed to hosting with a quick scp; I like it this way, but that's for a single open source project.
Thanks for your feedback. I read your post, went through the documentation of MassiveJS and I think your experience will be useful for what I want to achieve.
We're a place where coders share, stay up-to-date and grow their careers.
We strive for transparency and don't collect excess data.