Apple has open sourced the kernel code of the latest macOS X and iOS updates. The company behind revolutionary products always shares the kernels of macOS and iOS on GitHub, but it has this time enabled the experience for ARM chips.
One of the reasons why Apple open sources a portion of macOS and iOS each year is because of its indirect dependency on BSD project. There is no way to let developers use the open source codebase published by Apple to compile their own OS. However, the kernel guides coders to begin with macOS and iOS kernels.
Notably, the ARM-based source code of Apple’s kernel doesn’t mean much but gives Apple a way to give back to the open source community. Some open source experts are predicting that the iPhone maker could be working on macOS that runs on ARM chips.