Go to Github and do a simple search just to see how many projects are nearing completion, but then dropped at some random point never to be touched again. The README.md is almost always impeccable, and go into great detail about the upcoming plans that were already dropped years ago. Real go-getters, that bunch.
Even better, add "quantum" to your search, and nearly all of them that aren't from the well-known quantum compute companies are like that. They really stand out among their peers. In a laughable way.
Lisp people can't resist getting into something, and then just turning away without notice when they realize they're in over their heads. How many Lisp "books" and "tutorials" are being written over decades now. Especially the quantum ones?
Lisp "tutorials" are the worst because it is so obvious the writer is learning at the same time they're writing. You're basically learning their mistakes as verified gospel. Only once you get some experience, or a better course, do you realize how much those "toots" lead you astray.
Even the YouTube Lisp courses that pretend they are complete aren't. They get about half way through, and then rush through a one pager on OOP programming to end it. Ridiculous.
I love the Lisp language. I really dislike its "meh" culture.