Assuming the submitter created it (it's a Show HN), it's presumed relevant -- any new project from anyone in the "HN community" is a reasonable topic, even if it's not something which would be otherwise discussion-fodder for HN.

The submitter probably should include more info on the project (why, tools used, etc.) to make the posting relevant to HN, along with specific requests (like, "would you pay for this?" or "how can I make this work on mobile" or whatever).