This example demonstrates a minimal “Hello World” visualization using the VizHub V3 Runtime Environment, which enables continuous hot reloading and interactive widget tweaking. The code renders text directly into a container DIV using plain JavaScript, with a font size adjustable via Alt-drag interaction. It relies on no external libraries, only the runtime’s core `main` function export and SVG-capable rendering. The accompanying HTML file includes an empty SVG element and logs the D3.js library to the console, though no data processing or chart drawing occurs beyond this basic setup.