This example demonstrates a minimal D3.js setup, rendering an empty SVG canvas with a single `<g>` group element. The code uses `d3.select` to target the SVG by its `id`, sets its width and height to 500 pixels each, and appends the group. It is built with D3 version 7.8.2, loaded from the unpkg CDN, and the visualization is entirely static, showing no data or geometric shapes. The fork serves as a starting point for learning D3’s core selection and SVG manipulation APIs.