I’m slightly envious of people who can describe all the tiny technical details of things they worked on years or even decades ago. I can’t do that - my brain seems to evict things it “doesn’t need anymore” really fast and unless I have a “hook” back in, I can’t immediately recall how I did some of the things I did. This is part of the reason why I take the time to write decent docs & comments for my libs; they’re as much for me as anyone else