symfony new bug  --webapp --version=next --php=8.2 && cd bug
composer config extra.symfony.allow-contrib true
composer req symfony/asset-mapper:^6.4
bin/console importmap:require twig
bin/console make:controller Bug -i
cat > templates/bug.html.twig <<END
{% extends 'base.html.twig' %}
{% block javascripts %}
    {{ parent() }}
    <script type="module">
        import Twig from 'twig';
{% verbatim %}
        var template = Twig.twig({
            data: 'Hello, {{ name }}.'
        });
        document.getElementById("#hello").innerHTML = template.render({name: 'Tac'});
{% endverbatim %}
    </script>
{% endblock %}
{% block body %}<div id="hello">hello</div>{% endblock %}

END
symfony server:start -d
symfony open:local --path=/bug