> Or trying to work with students on a Swift project, only to find out that the MacOS file system pretends to understand Unicode file names, but really ignores

> Or trying to work with students on a Swift project, only to find out that the MacOS file system pretends to understand Unicode file names, but really ignores them. Wait, really? HFS stores Unicode file names in (according to Wikipedia) the "Apple-modified variant of Unicode Normalization Format D)", but it really does store them, I think (unlike case, which it preserves but ignores, which basically means it guarantees wrong behaviour).