Sorry for the late reply. GitHub Actions' macOS runners do not come with Docker installed, because of licensing issues: https://github.com/actions/runner-image

Sorry for the late reply. GitHub Actions' macOS runners do not come with Docker installed, because of licensing issues: https://github.com/actions/runner-images/issues/17 https://github.com/actions/runner-images/issues/17 Then there is the issue that the macOS runners are virtual instances, and pass-through virtualization has not been enabled: https://github.com/douglascamata/setup-docker-macos-action#:~:text=For%20the%20M1,open%20an%20issue. https://github.com/douglascamata/setup-docker-macos-action#:...