Sometimes open source on locked down and jailbroken hardware is better. Sometimes it bricks the hardware. I wonder what it's like to have a brick in the eye?

Also this is a thing that goes in your body, and the FDA might have something to say about open source in that context. Is there any open source software running on pacemakers at the moment?

I think there are many more issues involved than simply "it's my hardware and I'll do what I want with it." If we get better eyeware through open source then great, but I'm skeptical at the moment that it can, much less will happen.

That it's possible now with most hardware doesn't mean much. There are powerful entities that have been working for years to ensure that open source is only possible where & when it suits them.

New devices are much more locked down than they would have been a decade ago. That's not an accident or a fad.