You have not mentioned Dancer2 at all, so I can only assume that part is irrelevant. In which case, here is my SSCCE:

#!/usr/bin/env perl
use strict;
use warnings;
use utf8;
use Template;

my $tt = Template->new;

my $name = 'François';

my $ttext = <<EOT;
As a literal: François

As an interpolated variable: $name

As a template variable: [% name %]
EOT

$tt->process (\$ttext, { name => $name });
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