Still, I prefer #Fossil fossil-scm.org and fossil-scm.org/home/doc/trunk/…
Git provides file versioning services, whereas Fossil adds an integrated wiki, ticketing & bug tracking, embedded documentation, tech notes, a forum, and a chat, all within a single nicely-designed web UI, protected by an access control system. These capabilities are available for Git as 3rd-party add-ons, but with Fossil they are integrated to the point that it approximates "GitHub-in-a-box."