The XNU kernel, as Apple's documentation explains, is "a hybrid kernel combining the Mach kernel developed at Carnegie Mellon ...

What helped a lot here was that even beyond the modular hybrid kernel the entire architecture of BeOS focused on modularity, allowing these developers in the early 2000s to gradually create new ...

Enter Debian GNU/kFreeBSD, a unique experiment that merges Debian’s familiar userland with the FreeBSD kernel, offering a hybrid system that takes advantage of FreeBSD’s technical prowess while ...