Depends on how stuff is implemented no? You change a library, you do a rebuild of all packages that uses that library, the user downloads package deltas and the

Depends on how stuff is implemented no? You change a library, you do a rebuild of all packages that uses that library, the user downloads package deltas and the filesystem does deduplication so the same file is used in all the containers. Would only cause a problem with packages from third party sources. But thats a possible problem now already?