Almost nobody is working on bare metal. Everyone above that level takes other people's APIs (whether they be the CPU commands, the OS functionality, app functi

Almost nobody is working on bare metal. Everyone above that level takes other people's APIs (whether they be the CPU commands, the OS functionality, app functionality, or service functionality, and then "hacks" it together to produce something which they believe is either fun or useful. I'm not sure why you're looking down on this particular level of abstraction.