Uh, this is exactly the type of thing that FUSE is good for. Doing this as a FUSE layer would be way way easier than for Windows (unless they used Dokany[1], and they probably didn&#x27;t) or god knows what you have to do to get OS X to support user-space filesystems.<p>1. <a href="https:&#x2F;&#x2F;github.com&#x2F;dokan-dev&#x2F;dokany" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;dokan-dev&#x2F;dokany</a>