Interesting thought, however I think that the existing graph driver file systems are not actually an "image layer file system"... instead they are a general pur

Interesting thought, however I think that the existing graph driver file systems are not actually an "image layer file system"... instead they are a general purpose file systems that are being used to store images. For example, what one wants with launching multiple instances of an image is to be able to clone the image. Today, to accomplish that, file system snapshots are used to simulate this feature. And that is where a lot of the problems start happening. LCFS does things purpose built for these use cases.