search for: nohfscompress

..., which could be taken advantage of like so: rsync --copy-command ditto --hfsCompression {src} {dest} \; "$source" "$destination" Since this enables a form of transparent compression, rsync should still see the copied file as identical to the original. Alternatively, the --noHfsCompression option could be used instead to ensure that compressed files are decompressed, even if the target would have been compatible. Another useful macOS example is the use of cloning within an APFS volume, which will produce an instantaneous copy requiring no additional space, and can be used like so...