This example shows a real-time interactive visualization of network activity, with nodes and links that respond to user clicks and drags. The code uses D3’s `forceSimulation` and `forceLink` to compute physics-based layouts, while CSS and raw JavaScript handle rendering and event handling directly in the HTML. Data is generated procedurally as random nodes and edges, illustrating a basic node-link diagram without external datasets. The page also references a separate React starter template, but the core behavior here relies on plain DOM manipulation and D3’s force layout.