I still don't get it. What I want to do is make software as a hobby that can never be sold. If I start writing some boring SaaS software instead then I'm losing

I still don't get it. What I want to do is make software as a hobby that can never be sold. If I start writing some boring SaaS software instead then I'm losing my opportunity to do what I like? I think it must basically be a funamental question of goals/aspirations to begin with. I never had an aspiration to be e.g. wealthy, retire early, or make very senior positions within my company. Is that the difference?