How do we mount a Svelte 5 component?

[tanin47]

In Svelte 4, I can do something like:

<script src="../somepath/svelte/home/index.js"></script>
  <div id="app"></div>

  <script>
    new Index.default({target: document.getElementById('app')});
  </script>

I understand we can enable compatibility.componentApi. However, will we offer a different way that doesn't require wrapping a component in another file simply to get mount?