How are they going to compete with Asus, Apple, Lenovo, Dell, HP, any other OEM?

Making a computer is about supply chain as much as its about what's inside and the software. Those supply chains take a decade to establish

cool that a 19yr old have better hardware procurement skills and leverage than all tech companies combined.

Pretty much investors (if any) are betting they can resell GPUs and RAM that nobody seems to be able to buy.