How did you land on another analytics SaaS product? I think like every dev I have always dreamed of starting my own thing, but never had the time/energy to comp

How did you land on another analytics SaaS product? I think like every dev I have always dreamed of starting my own thing, but never had the time/energy to compete with existing spaces, and couldn't think of any new markets create. It just seems crazy to me when someone is like: 'oh I am gonna make a tool for people to manage their finances' when 1000 exist, but then they build it and achieve some level of success.