Comment on MenuetOSparentComments−conradev4yAll of these things are ultimately abstractions built on top of POSIX (aside from actual unikernels which can be used in the virtualization scenario)It absolutely does free OS designers to remove the POSIX parts from in between, but no one really has yet−pjmlp4yThere is no POSIX on many type 1 hypervisors, specially stuff like Hyper-V.Android and ChromeOS developers also don't have any access to any kind of POSIX abstractions or APIs.
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All of these things are ultimately abstractions built on top of POSIX (aside from actual unikernels which can be used in the virtualization scenario)
It absolutely does free OS designers to remove the POSIX parts from in between, but no one really has yet
There is no POSIX on many type 1 hypervisors, specially stuff like Hyper-V.
Android and ChromeOS developers also don't have any access to any kind of POSIX abstractions or APIs.