Apple releases the Open Source components of mac os Sierra 10.12
As already happened in the past, Apple has released the open source components for macOS Sierra 10.12. The code, which is found on Apple's website, is accessible through a direct connection, even if it is not already present on the home page.
The more layers “deep” of macOS, including the kernel, some BSD, and drivers are mostly based on Open Source technologies, collectively called Darwin. Apple provides you with download links for the latest versions of these technologies for the entire open source community allowing it to be exploited at will, or simply used to improve its effectiveness.