This node-link diagram visualizes the hi-tech firm network from networkrepository.com, showing connections between 36 firms. The visualization uses d3.forceSimulation with forceLink and forceManyBody to position nodes, rendered as SVG circles connected by gray lines. Node colors are assigned using d3.scaleQuantize, and users can hover over nodes to see their values, though interaction may be slow. The code also implements drag functionality for repositioning nodes, with the graph centered within a 1300x900 pixel SVG canvas.