self-hosted-runner:
  labels:
    - self-hosted-fast
    - self-hosted-light
    # Blacksmith (Ubuntu 24.04 only; see the top of workflows/ci.yml).
    - blacksmith-2vcpu-ubuntu-2404
    - blacksmith-4vcpu-ubuntu-2404
    - blacksmith-8vcpu-ubuntu-2404
    - blacksmith-16vcpu-ubuntu-2404