[sudomakeup]

I dont recall if it was Apple that did this, but theres trick one can pull with an "open source"codebase thats part of a proprietary product.

One can have said codebase effectively outsource functionality to function calls on closed source libraries.

Google does something similar with android except in that case its moreso coupling functionality to their services:

https://arstechnica.com/gadgets/2018/07/googles-iron-grip-on...

[693471]

Apple does not need to do that because of the BSD license, but I've done that with AGPL3 software before. It was the suggested solution by the original developer of the project, whom we hired