This looks nice, the goals seem to be pretty close to SerenityOS's ones : a "love letter" to 90's UNIX experience, using modern tech (although this is obviously not a full-blown OS like Serenity). I love retro projects like this!
The Win95 interface, being rather well-known, was a frequent emulation target and generally easier to do than OS X, although the finer details are usually missing from both (e.g. good keyboard control).