Hacker News doesn't block self promotion. You are free to post your own stories linking to your own work, I've done it, people do it all the time. There's a who

Hacker News doesn't block self promotion. You are free to post your own stories linking to your own work, I've done it, people do it all the time. There's a whole section for it, 'Show HN' (although it's not required to post there). And you're free to post links to your work in comments when relevant. Of course spam is unwelcome everywhere. Don't overdo it and don't be deceptive about it, and you'll be fine.