What problem does it solve? Growing or shrinking a home Kubernetes cluster involves error-prone manual steps: joining k3s agents, registering remote clusters, draining nodes safely, and confirming that build capacity actually scales. This Skill provides the agent-executable runbook for the full node and cluster lifecycle in the Bluefin Server lab. ## Core Features & Use Cases - k3s node join: Install the k3s agent on a new PC as a persistent systemd service, verify scheduling, and apply storage labels and local-path configuration. - WEC cluster join: Register a separate cluster with KubeStellar via the register-wec Argo WorkflowTemplate or clusteradm, including zero-touch bootstrap token options. - Drain and removal: Safely drain nodes, delete nodes or ManagedClusters, and check PVCs, KubeVirt VMIs, and BuildStream workers first. - Use Case: You bought a second PC running Bluefin Server and want it to join your existing k3s cluster so BuildStream builds parallelize across both machines, then verify the build grid expanded. ## Quick Start Ask the agent to join a new PC to the k3s cluster and verify that BuildStream workers spread onto the new node.