[infokiller]

While I can appreciate your vision, that seems too detached from the current reality.

Software development is a highly distributed system with many human participants with different (and sometimes conflicting) goals and skills. And to make it effective, you almost always need to reuse software created by many other people that you don't know (which incidentally creates a huge opportunity for supply chain attacks).

In this reality, you get very little assurance about the authenticity and security of anything you use.