Wasn’t the issue here that they would have liked to partner with GrapheneOS, but GrapheneOS didn’t want to, because of some security requirements that they had?

Same can be said about the Linux Kernel.

God, I have days like this where I build a feature for a whole day nevrr compile in between as it is not done yet. Then run it and it just works.

The next day is spent in paranoia mode trying to write more and failing tests.

2-3 times in my career it happend that the tests never failed and I had just written complex code that worked on the first try.