One of the nice things about podman is that it's super easy to configure image caches. So instead of rewriting all my image references to use my local cache tool, I can just set a cache directive in podman and everything works transparently.
Can you? Pull through cache is awesome but I have been leaning on harbor registry to implement it. Harbor is great but is a full featured registry application. Would be sweet if pull through can be quickly spun up ad hoc.