This interactive network visualization shows a force-directed graph with labeled nodes and directed links. The graph is loaded from a remote JSON file and rendered using SVG. The visualization uses the D3.js force simulation API, specifically `d3.forceSimulation()` with `d3.forceLink`, `d3.forceManyBody`, and `d3.forceCenter`, to position nodes. Users can drag nodes, which restarts the simulation. Link labels are rotated to stay upright, and arrowheads mark link direction. The code relies on `d3.selection` extensions for event handling.