This example renders a small directed network of eight nodes and five links using D3 v7’s force simulation. The SVG draws curved paths with arrow markers, while each node combines a small circle with a clickable Firefox logo image. Forces include `forceLink`, `forceCollide`, `forceX`, and `forceY`, with node positions updated on each simulation tick. All layout and rendering rely on `d3.forceSimulation` and SVG elements.