The product was live in less than a week, and it was already getting real users. That is the core of a Lean MVP.
A Lean MVP (Minimum Viable Product) strips your product down to the smallest version that can deliver value and gather accurate feedback. It is not a prototype. It is not a slide deck. It is a working product that people can use right now. The goal is speed and learning, not perfection.
Building a Lean MVP means cutting features until only the essential remains. Every feature must prove it directly supports the main problem you are solving. Anything else is cost without return. The faster you release, the faster you start collecting validated data from real users.
A common trap is overbuilding on assumptions. That slows feedback loops, inflates technical debt, and risks missing the mark entirely. Instead, choose clear metrics—activation rate, retention, conversion—and design your MVP to measure them. If the metric moves in the right direction, expand. If not, adjust or pivot.