I'm pretty much 100% this is a fully LLM generated article. That lib absolutely doesn't exist.

I recently had the same experience. Go looking for software; find an article that describes a project in detail that does exactly what you asked for; project doesn't exist; further investigation finds no reference to the software anywhere other than that article.

This has happened a couple of times to me; the tip-off is that there's no link to the project in the article, although sometimes there'll be a link to a domain owned by a squatter or something unrelated. Unless the article has a date and it's from a decade ago, I chalk those up to AI as well. I'm certain there are thousands of abandoned projects and domains, deleted repos, and so forth, but I think increasingly the odds of AI shenanigans are pretty high in these cases.

What do you mean by TUI? Terminal User Interface? If so, inquirer is nice for CLI prompts to the user for input