Field notes from production

Configuration delivery and safe rollouts for 500,000 Linux hosts. I write about what it takes to keep that running.

Selected work and older projects from the same career.

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From Model Routing to Workload Placement The Harness I Added, Then Retired Raspberry Pi headless setup A highly available k3s control plane with keepalived and HAProxy Troubleshooting Spacewalk, OSAD, and Jabber