> There is nothing in the book that indicates that Google's implementation of the contact tracing spec would deviate from the spec either through incompetence or malice.

I agree I'd trust Google over the government and many others. But the OP you are replying to called for releasing the source code, and reproducible builds. If you do that, you don't have to trust somebodies word or the laws of the land, you have the laws of mathematics in your court.

Surely you are not saying what is a clearly inferior solution is one we should be using.