Probably better to just post the Medium post directly (which I see you did just after this). You might want to know that posts on Medium are slightly "penalize

Probably better to just post the Medium post directly (which I see you did just after this). You might want to know that posts on Medium are slightly "penalized" (meaning they need more upvotes than other domains to stay on the front page) so posting to your own domain might be better. "Show HN" type posts go over well, as long as you have a link to something you've created yourself. Scattershot advertising spam goes over very badly. If in doubt, email to hn@ycombinator.com is a good way to find out the best approach.