In 2023 I quoted a customer some 30 hours to deploy a Kubernetes cluster to Hetzner specifically to run self-hosted GitHub Actions Runners.

After 10-ish hours the cluster was operational. The remaining 18 (plus 30-something unbillable to satisfy my conscience) were spent trying and failing to diagnose an issue which is still unsolved to this day[1].

[1]: https://github.com/actions/runner-container-hooks/issues/113