That blog, Howard Oakley at eclecticlight.co, is consistently the most informative on the internet about macOS behaviors and internals, that Apple does not explain. He is also the author of several useful tools [1] to help observe and understand some of its underlying details. It's maybe the closest we have to a SysInternals for macOS.
https://www.osnews.com/story/140868/macos-15-0-now-unix-03-c...
I can’t say this affects me in any way I’m aware of, but the perception presented here is interesting.
https://www.quora.com/What-goes-into-making-an-OS-to-be-Unix...
Because I was very disappointed with it ending at “SSV doesn’t let you”. SSV can be disabled, and the author should have known (almost certainly knows) that.
From one of his comments on his post:
> I wish whoever takes that project on, every success, even more so at working out how those processes can be disabled completely while keeping the SSV intact.
A lot of people know that modern macOS is a bit of a let down when it comes to modifying it unless you disable a bunch of security layers. So the information gained is basically 0.
Edit: I should clarify that some of the ways they analyze how services are launched etc. are quite interesting, though I hope my prior thought makes sense to some.
His website are deep dives into the technical workings of macOS that no one else does. I’d even argue he has more insights and documentation than Apple. It might sound harsh, but he’s just very clinical about it.