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- Server config now uses cluster-init: true for initial server (enables embedded etcd). Joining servers get server: + token: in config. - Cilium install already checks for existing installation, so joining servers skip it gracefully (the "release name in use" error is non-fatal) Cluster rebuilt as etcd HA: worker0-k8s0 control-plane,etcd (initial server, cluster-init) worker1-k8s0 control-plane,etcd (joined server, Mac Studio aarch64) spark-2935 worker (DGX Spark, aarch64) Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>