All powered by the Linux kernel, the very meaning of monoculture.

Also it isn't as if BSD, FreeRTOS, Aix, INTEGRITY, SmartOS, Illumos, QNX,... don't exist.

> Aix

This is more a limitation on the architecture - virtually nobody has power arch hanging around to play on.

	▲	pjmlp an hour ago \| parent [-]
		As owner from Red-Hat and Linux contributor since 1998, IBM isn't certainly blocked by choice, they also have Linux for the same architecture, which Aix customers could switch to and don't.

vardump 3 hours ago | parent | prev [-]

FreeRTOS is an odd one in that set.

	▲	pjmlp an hour ago \| parent [-]
		It also has good enough POSIX support.