Not as a hands-on project I don't think, for the reasons you listed, but there are books that do explain these things, and are probably the closest to what you

Not as a hands-on project I don't think, for the reasons you listed, but there are books that do explain these things, and are probably the closest to what you want. For Windows: https://learn.microsoft.com/en-us/sysinternals/resources/windows-internals https://learn.microsoft.com/en-us/sysinternals/resources/win... and for Mac/iOS: https://newosxbook.com https://newosxbook.com Those are official sites, the books themselves can also be found elsewhere if you get my meaning.