Android runs on Linux. That doesn’t make you Google. There’s no reason to reinvent the wheel.

We’re not talking about hardware startups trying to build a minimum viable product,

I once worked for a publicly traded company. It was a few guys doing the custom Asics, one guy doing the board layout and two guys doing the software. This wasn’t a minimum viable product. It was a commercial product used by every large bank in the world.

Have you heard of Micronics motherboards? I knew the person who did their first motherboard. It was one person.