Cloning this repository:

git clone git://gitorious.org/~ivryabenko/gentoo-arm-overlay/ivryabenkos-gentoo-arm-overlay.git ivryabenkos-gentoo-arm-overlay
cd ivryabenkos-gentoo-arm-overlay

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

git remote add ivryabenkos-gentoo-arm-overlay git://gitorious.org/~ivryabenko/gentoo-arm-overlay/ivryabenkos-gentoo-arm-overlay.git
git fetch ivryabenkos-gentoo-arm-overlay
git checkout -b my-local-tracking-branch ivryabenkos-gentoo-arm-overlay/master_or_other_branch