[dancer-users] How do I mount a Dancer2 app tree with Plack::Builder?

I followed this tutorial http://advent.perldancer.org/2012/7 and built a very small but structured Dancer2 application. Now I would like to mount it as a PSGI application with Plack::Builder. What do I have to do? This here app.psgi configuration definitely doesn't work: https://metacpan.org/module/SUKRIA/Dancer2-0.02/lib/Dancer2/Deployment.pod#R... (it was probably built for Dancer1) Thank you