use Perl

I would have put the template configuration in the config.yml configuration file. Or you could just use the default <% and %> start end tags in your templates. It wouldn't be the end of the world. I know that it is a matter of style and personal preference, but with a little white space formatting the dancer version could have been written more concisely like so:

#!/usr/bin/perl
use Dancer;
use Template;
use CPANDB { maxage => 3600 * 24 * 7 };

# Route block
get '/' => sub { template 'index' };

dance;