Yeah, I think it goes into a similar spirit to what you described, in the sense that you keep things in you in a format you can use later in life.
It wasn’t always so orderly. It really started as a bunch of loose directories with different things. I only actually put it under source control recently when I decided to organize it a bit better. I was surprised with the things I found. Some I had forgotten. Like experiments with new libraries, or even trying programming languages.
I think that the fact I keep voice audio muted helps me not to get to much toxicity D: