Cloning this repository:

git clone git://gitorious.org/~reality/tunnel/tunnel-chat-identica.git tunnel-chat-identica
cd tunnel-chat-identica

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

git remote add tunnel-chat-identica git://gitorious.org/~reality/tunnel/tunnel-chat-identica.git
git fetch tunnel-chat-identica
git checkout -b my-local-tracking-branch tunnel-chat-identica/master_or_other_branch