Edit: Child comment has the video. Starting at 20:17, "We wanted to open source the system. So why didn't we? What was the problem? Well, the problem was that it's a deeply proprietary system."
And we're "just" a language runtime and a shell shipped in the OS. I can't imagine how hard it would be to unwind the proprietary bits of something like a GPU architecture running in a tightly integrated SoC with multiple vendors who are all deeply protective of their IP.
I say this all as someone who has been a proponent of open source for 15 years. And all the work was absolutely worth it, and deeply rewarding from a personal perspective.
But I can't say it would probably make the same sense for Nintendo to go through that effort with Pokemon or the N64 architecture.
I don't have time to rewatch it now but I believe the point of the talk was to promote Illumos as the true community-driven open-source fork after Oracle dropped the ball. This is exactly what I'm talking about: the community is often happy to pick up the slack and cover for the failures of these companies, but only when given the opportunity. Yes it's a lot of work, a lot of conversations and a lot of corporate politicking. But how can anyone get started when the relevant parties are not willing to even present an opportunity?
The decision to open source is not as dichromatic as it might seem. In between the "yes we want to open source" and "no we don't" there is a huge chasm of "IDGAF".
The hubris of those who believe other people should be forced to release their (not already subject to a copyleft license) work is the very antithesis of FOSS principles.
Now if this isn't actually the case and they're just using it as an excuse because they don't want to release it, and they want to continue playing this cat-and-mouse game with leakers and ROM sites forever, that's fine too, it's a little disappointing, but my intention is to present the idea that there is a different way.
Unfortunately, Nintendo has never done anything like this. Maybe some reputable organization like a computing museum could ask them to place this information in escrow in the Internet Archive, so that it can be released "properly" after copyrights expire and trade secrets have long become irrelevant. But there's no way they're going to do more than that.
If this trend continues, it would be prudent of them to find bigger and better ways to contribute back.
But I also think that the contribution to society from Nintendo's products should also be valued. Just because we pay for those games, doesn't mean our lives aren't better than they would be if the company didn't exist and we spent the money on something else.
They also contribute by increasing the market competition for games. They make other games and games companies better. They encourage innovation in ways that other companies wouldn't think about or wouldn't prioritize otherwise.
I'm totally ok with companies utilizing open source to make my life better in this way. Contributing back code for others to use is also an important activity.
Now would be the time for Nintendo to seriously consider open sourcing some of this stuff so they have a chance to put it out there legally and in a way that benefits them, instead of the current situation where it only benefits shady outfits selling aftermarket raspberry pis loaded with illegal ROMs, that were never going to partner with them anyway.