The semantics of a bare file system cannot be (easily) changed, I think. What would be nice is having a thin shim layer on top of their existing semantics to ha

The semantics of a bare file system cannot be (easily) changed, I think. What would be nice is having a thin shim layer on top of their existing semantics to handle more advanced file abstraction. Applications nowadays need to repeatedly do something that file system doesn't provide, but sometimes their solution partially overlaps with the fs. A middleware that provides clearer separation would be nice.