Instead, he chose to spend 4 full working days to build a computer that doesn’t work as well as a Mac and can stop working altogether any day with no recourse. A computer that is worth zero in the resale market. A computer that Apple will not service.
By the sound of it, this is the author’s only computer, which he is dependent on to make his living, and it seems he isn’t planning to buy another Mac (even though he is a professional iOS developer).
This is a cautionary tale, an extreme example of being penny wise and pound foolish.