This architecture illustrates a centralized observability framework for your Pi-lab and Dell server ecosystem. • Grafana acts as the analytics and visualization layer. • Node Exporter provides consistent metrics from each compute device. • docker-compose provides declarative deployment for Grafana. • Raspberry Pi nodes and the Dell Ubuntu server function as monitored compute assets. • Dashboards provide operational visibility and analytics. The architecture supports: • Capacity monitoring • Performance debugging • Hardware health supervision • Future integration with Prometheus, Alertmanager, Loki, Tempo, etc.