Yes! Apple used to have Technical Notes that were a deep dive into how the OS is implemented. They were super helpful in troubleshooting and optimizing for Mac OS. They haven't published anything like this in over a decade.
I suspect someone took "hiding implementation details" too seriously, and now Apple never talks about how anything works (it's all magic). You only get function's signature, and "documentation" that is basically just the function name with added spaces between words.
I suspect someone took "hiding implementation details" too seriously, and now Apple never talks about how anything works (it's all magic). You only get function's signature, and "documentation" that is basically just the function name with added spaces between words.