This example is a minimal fork of the blank-slate template with hot reloading, rendering a single static HTML page. It displays the phrase “Hello world” in a browser using standard HTML markup. The code does not include any JavaScript data visualization, charts, or dynamic behavior; it solely relies on the HTML `<!DOCTYPE html>` declaration and standard elements like `<head>` and `<title>`. The page is plain text with no linked stylesheets or external libraries such as D3.js or Canvas APIs. The rendering approach is the browser’s native HTML parser.