I maintain a <a href=/canopy#host>canopy host</a> called Canopy Garden.

$if web.tx.user.session and not web.tx.user.is_owner:
    <form action=/ method=post>
    <button>Sprout a Tree for Yourself</button>
    </form>
$else:
    <p>Sign in to sprout a tree for yourself.</p>