This network graph visualizes friendships among eight people, with nodes connected by green lines and arrow markers indicating the direction of the relationship. The graph uses a physics-based layout, where forces of attraction, repulsion, and collision position the nodes, and users can drag nodes to rearrange the layout. It is built with D3 v6, loading data from a JSON file and using `d3.forceSimulation` with `forceLink`, `forceManyBody`, `forceCollide`, and `forceCenter` APIs. Hovering a node highlights it with a thicker green stroke.