This is amazing work. I wanted to build something similar (virtual) while I was taking the Nand2Tetris course. I'm so impressed that you actually did it. You must have a really good understanding of how computers work now.
And I was just thinking about the same thing this morning, using SVG to model the basic components. And lo and behold somebody has done a magnitude more amazing job then what I was imagining!
I have just embarked on this journey myself, recently. It is motivating to see others' work. Especially when they're not quite the same as what I'm doing.
