Dancer2 and changing server port

Well the --port does not work... keeps it on 3000 also set port does not work...

#!/usr/bin/env perl
use Dancer2;
set port => '3010';
use lib './lib';
use Data::Dumper;
dance;

does not work... What to do ??? Here the magic environment variables...

sub _build_default_config {
    my $self = shift;

    $ENV{PLACK_ENV}
      and $ENV{DANCER_APPHANDLER} = 'PSGI';

    return {
        apphandler   => ( $ENV{DANCER_APPHANDLER}   || 'Standalone' ),
        content_type => ( $ENV{DANCER_CONTENT_TYPE} || 'text/html' ),
        charset      => ( $ENV{DANCER_CHARSET}      || '' ),
        warnings     => ( $ENV{DANCER_WARNINGS}     || 0 ),
        startup_info => ( $ENV{DANCER_STARTUP_INFO} || 1 ),
        traces       => ( $ENV{DANCER_TRACES}       || 0 ),
        logger       => ( $ENV{DANCER_LOGGER}       || 'console' ),
        host         => ( $ENV{DANCER_SERVER}       || '0.0.0.0' ),
        port         => ( $ENV{DANCER_PORT}         || '3000' ),
        views        => ( $ENV{DANCER_VIEWS}
              || path( $self->config_location, 'views' ) ),
        appdir        => $self->location,
    };
}

So specify your bin/app.pl like this

#!/usr/bin/env perl

BEGIN {
  $ENV{'DANCER_PUBLIC'}            = './app';
  $ENV{'DBIC_TRACE'}               = 1;
  $ENV{'DANCER_PORT'}              = 3010;
  $ENV{'DBIC_NULLABLE_KEY_NOWARN'} = 1; # allowing nulls in uniq constraints
}
use Dancer2;
set port => '3010';
use lib './lib';
use myapp;
dance;