$def with (system, apps, projects)
$var title: Code

<form action=/snippets method=post>
<textarea name=code>random.choice("foobarbatbaz")</textarea>
<button>Run</button>
</form>

<h2>Projects</h2>
<ul>
$for project in projects:
    <li><a href=/projects/$project>$project</a></li>
</ul>