Here is - http://maltais.getopenproducer.com/
Couple notes (which will probably be good to log when the documentation site is up) -
There is an editor role that 'should' give end users/artists just enough privileges to set up their site. Surely there's a way to have that be the 'default' role, but until I figure out how (is that something I need to do in openproducer.install or something like that?), I'm setting that up manually.
So if you login as artist/artist, you'll get the end user experience. admin/changeme if you want admin.
There are many undocumented issues I'm aware of, but feel free to log development issues here - https://github.com/openlearninglabs/openproducer/issues
Or we can just use this space for feedback.
Good luck!