I always seen Show HN for interactive things, not articles (which I would say this is), thinking specifically about this part from the Show HN Guidelines:
> Show HN is for something you've made that other people can play with. HN users can try it out, give you feedback, and ask questions in the thread.
> Show HN is for something you've made that other people can play with. HN users can try it out, give you feedback, and ask questions in the thread.