Cloning this repository:

git clone git://gitorious.org/robmyers/open_source_art.git open_source_art
cd open_source_art

Add this repository as a remote to an existing local repository:

git remote add open_source_art git://gitorious.org/robmyers/open_source_art.git
git fetch open_source_art
git checkout -b my-local-tracking-branch open_source_art/master_or_other_branch