@bortzmeyer yeah, I wonder if that would work for IETF or W3C groups and if the staff/tools teams would be willing to do it. I think the issue is that groups aren't just using git (decentralized), but also pull requests, issue lists, wiki pages, gh-pages-generated sites, etc.

W3C has produced tools that work with the GitHub repos to make sure content is backed up elsewhere and summarized to mailing lists.