Ever since BorgSoft bought #GritHub, I've been maintaining a list of community-hosted code forges here;
https://wiki.p2pfoundation.net/List_of_Community-Hosted_Code_Forge_Instances
My goals for it are to;
* demonstrate that there are replacements for GH that don't require projects to host their own
* showcase the range of independently-hostable code forge software available
* to maintain a list of forges that might be keen to try a federation plugin, if and when there's working code available
(1/2)