K3s on the home platform

Context

The published journal describes running and recovering a K3s cluster on home hardware. The October recovery exposed the operational cost of owning the control plane, networking and storage.

Design rationale

K3s gave the project a Kubernetes environment in which to learn and operate the platform. This is a retrospective account of that approach; the journal does not establish a formal ADR-019 acceptance date or the complete topology previously drawn on this page.

What changed later

The architecture checkpoint on 14 October 2026 records a four-node cluster. Worker nodes and separate backups do not, by themselves, remove a single control-plane failure point. Explore the dated architecture.

Source and record history

Read the published episode. Website Git history shows this page began as an explicitly labelled example reconstructed from the journal. Its original URL is retained, but the number in that URL is not a canonical ADR identity. Reconciled on 14 October 2026.