Ended up building an analytics based platform that uses data analysis techniques to generate trade ideas for retail investors [0]. Started it as a hobby July 2019, but it ended up growing quite big. The plan was to generate about $1k/mo but we are generating about $120k/mo these days with over 3000 paid users. I think I'm the most fortunate person in the world, never in my wildest dreams did I imagine this much.
I still work on it solo and have no plans on hiring a team, because solo is where I have most fun, and that's important.