No, it is not. Not even close. The genesis of macOS is NEXTStep and macOS is based on XNU which is Mach-based. Some FreeBSD elements have been added by Apple. Linux is a reimagination of AT&T System V Unix.
No, it is not. Not even close. The genesis of macOS is NEXTStep and macOS is based on XNU which is Mach-based. Some FreeBSD elements have been added by Apple. Linux is a reimagination of AT&T System V Unix.