Cloning this repository:

git clone git://gitorious.org/merb_radiant/mainline.git mainline
cd mainline

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

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

Cloning this repository:

git clone git://gitorious.org/~myabc/merb_radiant/myabc-clone.git myabc-clone
cd myabc-clone

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

git remote add myabc-clone git://gitorious.org/~myabc/merb_radiant/myabc-clone.git
git fetch myabc-clone
git checkout -b my-local-tracking-branch myabc-clone/master_or_other_branch