In order to get this working locally you need to run app.psgi, or any other HTTP proxy at the /playlist path.

To get all the dependencies for the proxy run the following commands:

curl -L http://xrl.us/cpanm | perl - --sudo App::cpanminus
cpanm --sudo Twiggy Plack::App::Proxy

Then you can run the appication in this respository's root directory

plackup app.psgi