>probably 80% of all of Apple's source was available to anyone within the company. This hasn't been true for quite a while. I worked on developer tools a few

>probably 80% of all of Apple's source was available to anyone within the company. This hasn't been true for quite a while. I worked on developer tools a few years ago and had a lot of trouble finding internal code written in swift to test my tools on. This was when Apple had a few dozens (that we knew of) sort of mature swift codebases.