I've often been frustrated by the GitHub search and used applications like grep.app (And also an internal tool). However, it looks like GitHub are on the case and are making their search super powerful: cs.github.com/

For NFTS:

When I was trying to understand what NFTs were and how they were implemented I went through a few videos here:

www.youtube.com/c/HashLipsNFT…

A little bit less well known but he goes through the process of building a generative art project from scratch.

Quite interesting.