How to Submit a "Show HN"
If you're sharing your own work and there's a way to try it out, put "Show HN" in the title. Make sure you've read the Show HN guidelines: https://news.ycombinator.com/showhn.html.
Posts without URLs get penalized, so when you submit, put your site in the URL field and leave the text field blank.
Add a comment to the thread giving the backstory of how you came to work on this, and explaining what's different about it. That tends to seed discussion in a good direction.
Include a clear statement of what your project is or does. If you don't, the discussion will consist of "I can't tell what this is".