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Re:Commentary on the sixth edition Unix operating system (19... by a-dub on Friday September 17, 2021 @02:57AM (#28562121)
this makes a lot more sense alongside the actual souce code, like in this version:

https://www.amazon.com/Lions-Commentary-Unix-John/dp/1573980...

Re:Commentary on the sixth edition Unix operating system (19... by mananaysiempre on Friday September 17, 2021 @04:09AM (#28562599)
See also https://en.wikipedia.org/wiki/Xv6 for an attempted equivalent that would be freely redistributable, prepared as material for the MIT OS Engineering course. Apparently they switched from 32-bit x86 to RISC-V as a platform while I wasn’t looking :)