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   Malcontent Negotiation (pikesley@mastodon.me.uk)'s status on Tuesday, 15-Aug-2023 01:04:23 JST Malcontent Negotiation

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   • Thomas 🔭🕹️
   • Studio 8502 :verified:

   @mos_8502 @thomasfuchs you're thinking of Linux I think

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     Studio 8502 :verified: (mos_8502@oldbytes.space)'s status on Tuesday, 15-Aug-2023 01:04:25 JST Studio 8502 :verified:

     • Thomas 🔭🕹️

     @thomasfuchs Most of it, yeah. The XNU kernel is kind of a hybrid of Mach and some BSD stuff and a bunch of Apple original code.

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     Malcontent Negotiation (pikesley@mastodon.me.uk)'s status on Tuesday, 15-Aug-2023 01:22:12 JST Malcontent Negotiation

     • Thomas 🔭🕹️
     • Studio 8502 :verified:

     @thomasfuchs @mos_8502 are you sure? As far as I understand it, Kernighan & Ritchie invented Linux at CERN in 1991

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     mxk (mxk@hachyderm.io)'s status on Tuesday, 15-Aug-2023 16:28:50 JST mxk

     • Thomas 🔭🕹️

     @thomasfuchs how much "actual" Unix code is contained in MacOS is arguable, but yes recent versions are technically a true UNIX and certified, while OSX originally wasn't certified and had a ton of incompatibilities to the SUS spec.
     This is explained rather well here: https://www.quora.com/What-goes-into-making-an-OS-to-be-Unix-compliant-certified