mach kernel
Mach is a kernel that came from a university, and it's like the grandpa of microkernels, even though not all of its versions are that fancy. It's also the reason your phone and computer sometimes act like they're on a bad day.
Mach is like the reason my phone crashes every time I open TikTok.
My teacher said Mach is used in Apple stuff, and I said, 'So that means my iPhone is haunted by Carnegie Mellon?'
I tried to use Mach and ended up with a computer that looked like it had been hit by a truck.