You can clone with
HTTPS or Subversion.
Our goal is to provide a great experience in MineCraft by adding a more realistic (but still fun) oil based system.
It's still early days, so there will be lots of change, so make sure that you check back often.
Also, we encourage feedback, so, feel free to provide suggestions, etc. by adding an Issue in GitHub (click the Issues link above).
You can see our current plans on the ToDo page