Before you find a technical co-founder, before you assemble a designer, a frontend and backend developer and DevOps, the first version can already be live and collecting answers from real users. That is what I do: I handle the whole process from brief to deployment myself, because web, apps, design, SEO and security are my everyday work, not four separate professions.
An MVP is the smallest version someone will pay for or start using. Not a half-finished product, but a sharp cut: one core process, sign-in, basic admin, measurement. Everything else waits until you know people want the product.
I build on a proven stack any other developer can pick up: Next.js, React, TypeScript, PostgreSQL via Supabase, Stripe and cloud deployment. The code, accounts and domain are yours from day one. When your team arrives later, nothing needs a rewrite.