A Work of art. I remember my dad building a computer using discrete TTL chips in our garage in Auckland. He took like two years and I'm guessing about five people saw it. I would love to see more of these on HN, but most don't get past a few upvotes in the sea of AI stuff.
Good news is there's still a lot of that on YouTube. I attribute it to Ben Eater but I'm sure there are others who helped or came before