Subversion
From MEPIS Documentation Wiki
Subversion is a version control system that can be used by the end user to stay current with development. Once installed through the repos, you can use the application for any development line that offers a Subversion repository. Just open a terminal and type:
$ svn co URL_of_Repository NameOfApplication
That will check out a copy of the application source tree into a directory named trunk on your local machine.