Apple uses kernel extensions for their own hardware, so you can always use that mechanism, once you disable the security check.Kernel extensions will not be supported on macOS devices running 10. Then restart your Mac and press Command+R key shortcut while the reboot is in progress. This process requires kernel extension be submitted to. Apple makes a better job of explaining things in a knowledge base article, describing system extensions as follows: System extensions are a category of software that works in the background to extend the functionality of your Mac. Custom kernel extension development is one of the most complicated tasks for macOS developers.Similarly, system extensions perform the same tasks that were exclusive to kernel extensions before macOS 10.Apple kernel extensions Applications that were installed before the upgrade to macOS Big Sur should have the kernel extensions pre-imported.