|Stuff is coming together nicely:
I haven't done any proper research that would show that I'm the first to do it (it is unlikely that's true). But the thing is - it works. And it works just good enough to motivate me to learn me some Metal and proceed with a proper immersive implementation of the thing.
(I wonder if Apple would actually let me publish it... I mean, I was able to publish one version for iOS a few years ago, so, who knows?)