No, the second one (docker-pushmi-pullyu) runs the registry on the build host.

I meant to reply to you, whoops.

docker-pushmi-pullyu does an extra copy from build host to a registry, so it is just the standard workflow.

I think Spegel does what I want (= serve images from the local cache as a registry), I might be able to build from that. It is meant to be integrated with Kubernetes though, making a simple transfer tool probably requires some adaptation.