I read all this and after seeing all the workarounds and special fixes to get back to a good workflow he had on the mac... I just have one question: Why use a Mac?

So he likes the extra performance (which he won't use 99.99% of the time), and he likes the screen (why not use an external screen like most sane people?).

I still don't understand. Why give up the amazing arch Linux for shitty Mac OS? Makes no sense whatsoever.