So I'm working on a reusable Unity library that exports as a .unitypackage and can be brought into a new or existing Unity project. One of the files in this library is a MacOS dylib module (with a .bundle extension although it isn't a bundle that can be opened). It's a third-party library so I can't change the way it's built. Interestingly, I am able to bring it into the library project just fine. However, when I go to export it along with the other files in the project (i.e. Assets->Export Package...), I can't select the dylib. I'm guessing it has to do with this file being a container format but I'm not sure why Unity can't export this file into a .unitypackage. Any help would be much appreciated!