Tbf, Apple does in fact keep their ‘Apple OSS Distributions’ GitHub current.

This is the TiVo situation. Does open-source require allowing third parties to install their own software / OS and have unlimited control over the device? (GPL v3)

Or does it regard to access to the source code but not access to the device? (GPL v2)

TV’s, routers, IoT, etc vendors aren’t even allowed to ship devices with user-alterable software!