Using "launch" may give readers the wrong impression. Show HN is not for product launches or advertising. It is for "something you've made that other people can play with" according to the specific rules for such submissions at https://news.ycombinator.com/showhn.html .

Submitters try to game the system to self-promote constantly but generally such improper submissions are ignored or shut down by the site moderators or users very quickly. Those who want to advertise or SEO on Hacker News are not welcome here.

But let's hope this one beats the statistics..