alt Hacker NewsYou say that like it's something completely different, but XNU is a BSD, with a lot of code inherited from FreeBSD in particular.
You say that like it's something completely different, but XNU is a BSD, with a lot of code inherited from FreeBSD in particular.
The "higher" levels of XNU are largely inherited from the BSD legacy, but we're clearly talking about what serves as the base. So even if you take an inheritance angle, XNU is based on Mach, not BSD. macOS is full of BSD/derivatives code, sure, but it is not based on them. The foundation is laid elsewhere.