You can clone with
HTTPS or Subversion.
Is there a usage guide somewhere?
I've looked at README and the home page (http://rythmengine.com/) but couldn't find any guide.
I want to use Rythm as a template engine for Xitrum:
The developer's guide is almost finished: http://rythmengine.org/doc/developer_guide
Configuration reference: http://rythmengine.org/doc/configuration
The documentation could be found at http://rythmengine.org/