This example renders a network graph using React and D3’s force simulation. The visualization shows nodes and links positioned through `d3.forceSimulation`, with each node rendered as a circle and links as lines. The code uses `d3.forceLink` for edge constraints and `d3.forceManyBody` for repulsion, updating positions via `requestAnimationFrame`. The graph is generated from hardcoded data arrays for nodes and links, demonstrating a basic interactive layout with drag-and-drop support.