We address two crucial aspects for entrepreneurs: basic legal considerations and the validation of business ideas through a Minimum Viable Product (MVP). On the legal side, it mentions trademark verification and registration, obtaining internet domains, tax and banking aspects, partner agreements and necessary permits. Regarding the MVP, the document describes several techniques to test market interest before a full investment, such as smoke tests, mockups, explanatory videos, customer interviews, A/B testing and crowdfunding. The ultimate goal of these strategies is to minimize risks and ensure project viability through iteration based on public feedback.