https://wccftech.com/apple-m1-reverse-engineering-attempts/

The capabilities of Apple’s M1 show that ARM chips could be the future when powering future notebooks and desktops. So far, there is no real competitor of this custom silicon, and there is no way Apple will let its chipset be used to other machines running different operating systems. However, that has not stopped researchers from attempting to make the M1 open-source so it can run on other platforms.

Maynard Handley, one of the developers that worked on Apple's Quick Time, has shared a 350-page document detailing how Apple’s M1 works. The current version 0.70 discusses instances of reverse-engineering the custom silicon, with various ideas and inputs provided by other professionals. The document will likely see multiple revisions before the M1 becomes viable to run different operating systems.