This example visualizes a learning roadmap for Linux, Docker, Kubernetes, and Golang as a structured knowledge graph. The visualization uses D3.js force-directed simulation (d3.forceSimulation) to position nodes representing topics, with links showing dependencies between commands, system concepts, and tool-specific resources. It renders hierarchical groupings for each technology domain, highlighting external documentation links for kubectl and Go tutorials. The graph layout dynamically adjusts node positions to reveal the interconnected nature of the learning paths, making the material’s sequence and relationships immediately apparent.