To chime in on this, and take what I write with a grain of salt since I still feel relatively new to MacPorts, but too much dependence on GitHub gives me the heebie jeebies.
I realize Trac isn't perfect, but there are far worse issue tracking systems that I have administered over the decades. If anything, I think it would be fantastic (though obviously, a non trivial amount of effort) if MacPorts were more self sufficient and self hosted and treated closed source for-profit proprietary entities such as GitHub as read-only mirrors; or maybe facilitated other git front ends such as codeberg, etc.?
