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A comment on Apple Open Source. Parent comment

Re:Apple Open Source by webmobdev on Wednesday December 08, 2021 @11:51PM (#29493940)
Since macOS is / was a port of xBSD, how much difference is there between Darwin and xBSD kernel?
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Re:Apple Open Source by bch on Thursday December 09, 2021 @03:08AM (#29495007)
The userland was largely BSD, but the Mac kernel was a Mach kernel w a BSD shim for syscalls, iiuc.
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Re:Apple Open Source by heavyset_go on Thursday December 09, 2021 @05:00AM (#29495616)
A significant part of the FreeBSD kernel was used in XNU.
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