I built something for my own business that's been generating solid results internally. It's reached a point where I think it could work as a standalone product for others in a similar space. Before I put more time into building it out for public launch, I want to validate there's real demand rather than just building in a vacuum. For those who've made this jump, internal tool to real SaaS, how did you test the waters without tipping your hand too early? Did you go landing page and waitlist f...