Your Phone is an Entire Computer

Now that I know my iPhone has the capacity to run MacOS, I would very much like to do so. I’d love to consider the possibility of switching to a less intrusive phone and repurposing this iPhone into a web server. Perhaps that seems silly, but it’s really not. I’ve already paid for the device, it's clearly a full blown computer, and why should I not be able to modify it as I see fit? A right to root access would make all of this possible. And I really want to run MacOS on my iPhone now, damn it.