Dancing cursors and Voronoi diagrams

The text discusses the interactive multiplayer cursor feature on PartyKit's homepage, which uses a Voronoi diagram to create cells based on the proximity of cursors. The server broadcasts all cursor coordinates to connected clients, and the client-side app utilizes D3 for drawing the Voronoi pattern. This feature aims to make the web feel more alive by showing real-time presence through other people's cursors.