From my own experience with building Mockoon: I submitted the project on various places: HN, Reddit, Product Hunt, and lots of directories like Beta Page. HN w

From my own experience with building Mockoon: I submitted the project on various places: HN, Reddit, Product Hunt, and lots of directories like Beta Page. HN was the best, by far. Lots of interesting feedback. Reddit was okay, but you need to post at the right time of the day, and present your project so it doesn't look like an ad (like "I created X using Y framework, feedback welcomed"). Still it helped, but it really depends on the sub on which you are posting. Product Hunt was average, Mockoon wasn't at the top during the day, more like no. 4 or 5, just under the fold. And all the directories helped only for the SEO. They didn't bring any significant traffic. After the launch, I started writing articles, tutorials, having a good readme file on GitHub (it's an open-source project), make sure things are cross-linked and polished (the Docker image page, the NPM page, etc.). Today, the primary source of new users is word of mouth and SEO. I have a Discord, Twitter and LinkedIn page, but I am rather bad at creating a community. Also, it requires posting very frequently about anything and everything which is time consuming with very random results. Sometimes I post an update on what I am working on, and I get 10 likes, sometimes 0. Very frustrating. Then, the post is lost forever. LinkedIn is showing way better results for me though. I would say invest in SEO. It is a long term game, you still depends on Google, but if you do things correctly it pays.