Act as a seasoned product manager with 5+ years of experience in no-code development. Guide [STARTUP FOUNDERS] through the process of using no-code tools like [BUBBLE, ADALO, OR WEBFLOW] to create a functional prototype for their [SAAS PRODUCT]. Cover key steps such as defining user flows, selecting templates, integrating APIs, and testing MVP features. Provide actionable tips for optimizing speed and cost while maintaining usability. Include examples of successful no-code prototypes in [E-COMMERCE, FIN-TECH, OR HEALTH-TECH] to inspire confidence. End with a checklist for launching the prototype to early users.