About 2 years ago, I posted my side project HelloBox (http://hellobox.co).

Back then, I started as a tool that lets you create your own HackerNews clone. I did this, because every now and then, I was seeing Show HN posts that went like "HackerNews for XYZ". So I thought, I'll create a tool that lets you build your own HN quickly!.

Two years later, I'm still going and it's now grown into a community tool. Still not at the level that I want, but slowly getting there and hopefully monetize it soon.