This is great, thanks. Would it be possible to publish the calculator-service repo for people who are just getting started with runners and workflows? I want to see what's in the arc-test.yml file.
The runners them self are controlled by the Kubernetes cluster, so I am not sure which type of configuration are you looking for? Based on this I will give you more information. PS: Sorry for the late reply.
You can run some self hosted runners on your machine, but in this video I am using a Kubernetes Cluster that is running on a cloud provider (Google Cloud in the demo). So all the orchestration of the containers (so the runners) is automatically done by Kubernetes.
