I've got a project like that (few years working on it, it's very unique, there's a demo), I talk about it in the comments from time to time but haven't done a dedicated writeup or anything.

I don't think I've ever seen a youtube video get to the front page of HN, and that seems the easiest way for me to broadly communicate all that I've put into it. Some part of me thinks a medium post about it or whatever just wouldn't make sense. I want to present what you're hungry for, haha.