https://pomdtr-vt_playground_demo.web.val.run
https://esm.town/v/pomdtr/vt_playground_demo
<script type="module" src="https://esm.town/v/pomdtr/vt_playground_demo" />
import vt_playground_demo from 'https://esm.town/v/pomdtr/vt_playground_demo';