Fossil is a distributed software configuration management system (DVCS) with built-in forum, wiki, ticket tracker, CGI/HTTP interface, and HTTP server. page 
* Built-in Web Interface
See *Fossil Versus Git* page
The usecase driving fossil's ability to nest the checkout of one repository into the checkout of another was that we (the Tcl Maintainers) wanted to share the same tclconfig/ across many packages instead of maintaining actual copies per package. page