Cloning this repository:

git clone git://gitorious.org/qemu-experiments/qemu-experiments.git qemu-experiments
cd qemu-experiments

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

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