Docker

The runner sat on a box in the corner of the network, quietly polling a Forgejo server for jobs, same as it had for months. Nobody thinks about the daemon until the daemon is gone. Docker had been there since the beginning — the whale logo, the systemd unit, the socket nobody questioned. Then one day the whale swam off, and what was left was a runner with a workflow full of docker/build-push-action calls and nothing underneath them.