This example demonstrates a force-directed network visualization built with React and D3, showing nodes connected by edges that repel and attract through physical simulation. The code uses `d3.forceSimulation` with `d3.forceLink`, `d3.forceManyBody`, and `d3.forceCenter` to compute node positions, while React handles rendering of SVG circles and lines. Interactive drag behavior is implemented via D3’s `drag` event handlers, updating the simulation’s alpha target on each interaction. The visualization renders from static, hardcoded data in the source files, with no external dataset or dynamic loading.