use 5.010;
use strict;
use warnings;
use ExtUtils::MakeMaker;

WriteMakefile(
    ...
    MIN_PERL_VERSION => '5.010',
    ...
    },


##</code><code>##

get '/hello/:name?' => sub {
    my $name = route_parameters->get('name') // 'Whoever you are';
    return "Hello there, $name";
};