This example demonstrates the minimal setup for an HTML page with an embedded script, rendering a blank page with a `<pre>` element that contains no content. The code uses the `document` API implicitly through the page structure, with an empty `<script>` tag and an `index.js` file that defines a JavaScript `message` variable set to “Hello” but does not display it. The page serves as a starting point for building visualizations, referencing React as an alternative framework. No external libraries or data sources are used.