Cloning this repository:

git clone git://git.sugarlabs.org/2020/2020.git 2020
cd 2020

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

git remote add 2020 git://git.sugarlabs.org/2020/2020.git
git fetch 2020
git checkout -b my-local-tracking-branch 2020/master_or_other_branch