The rules about Show HN are here: https://news.ycombinator.com/showhn.html https://news.ycombinator.com/showhn.html The part that is missing from your post is

The rules about Show HN are here: https://news.ycombinator.com/showhn.html https://news.ycombinator.com/showhn.html The part that is missing from your post is > On topic: things people can run on their computers or hold in their hands. For hardware, you can post a video or detailed article. For books, a sample chapter is ok.