Is this going to happen?
How do you compare slim to nil? Looks like azure sphere will be Linux based with the development on Visual Studio for the foreseeable future. Unless some else builds it
https://www.neowin.net/news/macos-and-ios-kernel-source-code-is-now-available-on-github works on ARM with Iphone devices and not with other ARM devices. So a major rework would have to occur. For now, the OS will be Micrsoft's flavor of the month for at least 13 years. This is Microsoft's support promise...
Unless some else builds it