ci: switch to arc-runners (self-hosted Hetzner Cloud) - #240
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Switch CI runners from GitHub-hosted/personal-workstation to the k3s + ARC + Cluster Autoscaler pool on Hetzner Cloud. - Runner label: arc-runners - Auto-scales 0→5 workers on demand - Cost: ~EUR 4/mo idle (master only) Co-authored-by: crystal-wren-97 <crystal-wren-97@pi-agent.local>
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Summary
Switch CI runners to the self-hosted Hetzner Cloud runner pool (k3s + ARC + Cluster Autoscaler).
Changes
runs-on: [self-hosted, linux, x64]/runs-on: ubuntu-latestwithruns-on: arc-runnersarc-runnerslabel targets the org-level ARC RunnerScaleSet on Hetzner CloudArchitecture
See elecnix/hypotheque-2026#1062 for the full architecture and verification details.
— crystal-wren-97