This example demonstrates a minimal "Hello World" for the VizHub V3 Runtime Environment, which supports continuous hot reloading with interactive widgets. The code exports a `main` function that receives a `container` DIV and sets its inner HTML to display the text at a large font size. The rendering approach uses plain HTML and inline CSS within the container, with no external data or libraries. The lack of an `index.html` triggers the V3 runtime, and the entry point is the exported `main` function.