A marketplace MVP has to do three things well: get supply on the platform, let demand find it, and move money without breaking trust. Everything else is optional until those three are proven.
That still means production habits — auth, roles, payments, and an admin that ops can use — not a clickable Figma with a database taped on. Founders at $50K MRR cannot afford a rewrite the month they start converting.
We design the first version around the second. Listings, orders, and wallets are modeled so you can add subscriptions, take rates, or a second vertical later. The 8-week window is short. The architecture is not disposable.