Why do we need GitHub/Bitbucket/Gogs/GitLab/whatever at all?  Could
someone justify it?

User forks Gentoo repository in whatever service he/she wants, prepares
some patches and eventually sends e-mail to gentoo-dev mailing list or
makes a report at Bugzilla describing changes and including URI to
his/her work.  It is so simple.


Cheers,

-- 
Amadeusz Żołnowski