Comment by sudosteph

Only mentioning this because the OP did - but for me (also ADHD) it's kind of the opposite. I'm finishing side projects for the first time ever because I can actually get them working before I get bored of them. My projects are more infra-leaning, and not all of them get much use, but some do. Others let me explore certain ideas and then sometimes serve as a reference point later when I run into something that reminds me of that.