Four weeks is a constraint, not a promise of less
Most teams hear “MVP in four weeks” and assume the only way to hit it is to skip the boring parts: tests, environments, documentation, a real release. We treat the deadline the opposite way. The four weeks are fixed; what flexes is scope. The first job is not to write code, it is to decide what the smallest honest version of the product is — the thinnest slice that a real user can actually use and that you can keep building on afterwards.
That framing changes every conversation. Instead of arguing about whether a feature is “nice to have,” you ask a sharper question: does this belong in the first usable slice, or in the next milestone? A constraint forces that decision early, while it is still cheap to make.