I love that, and would absolutely welcome it.
I actually have a repo at codeberg up where ive started moving the rules and things for public access/visibility, and thought that a wiki could go there (and be easily brought elsewhere if needed without any intervention needed by me).
Even if was just links to resources we could post up, whatever.
I'd be happy to spin up another repo just for wiki use and link it in the sidebar. The big issue is, of course, the content itself, so we will need some folks to contribute.
But if its an interest I can get this started in a few hours (summer sports for the kids, probably not going to be home for more than a few minutes for about.... 4-5 hours)