A single small Go service — it server-renders this HTML and a JSON API from one binary — running as a Knative Service on the Kohl Haus Kubernetes cluster (scale-to-1 so it's always warm, yet free to scale out). It's built as a multi-arch (arm64 + amd64) distroless container, stored in a self-hosted Harbor registry, and deployed straight from git by ArgoCD (GitOps). Every 30 s it polls only public-safe aggregates — cluster health, GPS/time, weather, mesh, hashrate — and the whole request is traced with OpenTelemetry into a self-hosted Grafana LGTM stack.