I don't. I have either learned these a long time ago or as a side effect of paying attention to this topic for almost quarter of century. But I think it should

I don't. I have either learned these a long time ago or as a side effect of paying attention to this topic for almost quarter of century. But I think it should still be possible to find old source code for things like games. Back when I was learning that stuff it was very difficult to get access to real game code, but today there is a lot of titles that have released its source code for everybody to pore over.