There's a GitHub organisation at https://github.com/cygwinports that looks to have been largely abandoned; there doesn't seem to have been any meaningful activity there since at least July 2019, and the link in the top bar has clearly been taken over by domain squatters.
I think the purpose of that organisation is now entirely served by the Git repos hosted at https://cygwin.com/git/, and clearly nobody is using it. Should someone (I guess Yaakov, as the organization owner) officially consign the organization to history and delete it? I do think it would be nice to have a GitHub organization to hold Cygwin packaging paraphernalia, which maintainers could ignore, or use as a mirror to or from the Cygwin-hosted repos, as they prefer. I'm happy to set that up and organize it myself, but I expect it'll be simpler to manage starting from a clean slate. Adam PS: it turns out that getting appropriate medical treatment for something you had no idea wasn't normal for 30 years makes it much easier to get stuff done! Hence the flurry of activity, as I catch up with around a decade of wishlist / "wouldn't it be nice if" things I'd never quite had the time and energy to get to...