All of those things already got reversed in the past. You just haven't heard of them because they don't really matter without you know, the support, software updates, the ecosystem and so on. What use do you have from one specific version of nvcc or the fw for one specific version of a watch? Your work will be obsolete with the next watch, that's why people haven't bothered so far.

Of course if it's cheaper, someone might, but the real barrier is really the whole first-party support, it's not the technical stuff.

Not that simple but yes, even as a decades long "macOSX" fan I would love to see the Mac finally unshackled. Maybe Apple hardware could become a bit more like the Apple II era again after all? Asahi up to latest hardware generation; fully reverse engineered drivers down to the Metal... it would be a dream.

Because with enough time "the market" reverse engineers everything that has mainstream adoption, but only you are going to reverse engineer something that only you care about

Because, frankly, older hardware is just much simpler and also has much more widely available information about it. It’s just easier. Not that you can’t try, but it’s going to be harder.

Except the ones that were brought up the last time you posted this not even a week ago?