This example shows a force-directed node-link diagram of inter-firm relationships in the high-tech sector, loaded from a CSV dataset. Nodes are rendered as hotpink circles and links as gray, curved paths whose widths scale with link weights. The layout is computed using `d3.forceSimulation` with `forceLink`, `forceManyBody`, and `forceCenter`. It also uses D3’s drag behavior to move nodes and a custom tooltip on hover, with the SVG drawn entirely through D3 v7.