Depending on what other (additional) features you're willing to accept, the GoHarbor[0] registry supports pull-through as well as mirroring and other features, it's a nice registry that also supports other OCI stuff like Helm charts, and does vulnerability scanning with "Interrogation Services" like Trivy.

I've been using it at home and work for a few years now, might be a bit overkill if you just want a simple registry, but is a really nice tool for anyone who can benefit from the other features.

[0] https://goharbor.io/