Comment by spopejoy

I like many things about Mac OS but I do wonder about the quality of the low-level software engineering.

The preponderance of bespoke NIH is glaring: filesystems, network protocols, "resource forks" (this one goes WAY back to pascal-OS days). Given that OS X was a significant rewrite and embrace of Posix, it's a mystery why they wouldn't have gone further with this.

I think the lack of a mature server OS reflects this. Single-user allows for a lot of workarounds, but a true multiuser runtime can't be hipster for its own sake.