what are some other tutorials for implementing a toy version of a hard thing in a short amount of time? Like https://implement-dns.wizardzines.com or https://raytracing.github.io

I’m especially interested in the “in a short amount of time” aspect, I think nand2tetris is extremely cool but you definitely can’t do it in 3 days.

If possible I'd love to hear about a project you personally did and how long it took you.