[glenjamin]

Docker layer caching is complicated!

CircleCI has an implementation that used to use a detachable disk, but that had issues with concurrency

It’s since been replaced with an approach that uses a docker plugin under the hood to store layers in object storage

https://circleci.com/docs/docker-layer-caching/

[remram]

Is it any better than buildx cache then, that also stores caches in object storage (via OCI registry)?