$ git clone git@github.com:hackjutsu/Lepton.git wasn't working for me as it tried to login as 'git' user:
git clone git@github.com:hackjutsu/Lepton.git
Cloning into 'Lepton'...
git@github.com: Permission denied (publickey).
fatal: Could not read from remote repository.
Please make sure you have the correct access rights
and the repository exists.
$ git clone git@github.com:hackjutsu/Lepton.git wasn't working for me as it tried to login as 'git' user: