to production
v0's output is the closest to production-shaped of any AI builder — a real Next.js App Router project with shadcn/ui. It's also, very often, a beautiful shell over mock data with Server Actions anyone on the internet can call. Here is what we fix.
Taking a v0 prototype to production means turning a Next.js interface into an application: replacing the hard-coded sample data with a real database and typed data layer, adding authentication and authorisation to Server Actions (each one is a public endpoint, whatever the UI hides), moving `"use client"` off components that don't need it, and setting up environments, CI and monitoring on Vercel. Gen2Prod does this by pull request in your repo, at a fixed price from $290 after a free audit, and keeps the shadcn/ui components v0 built.
The list we find on most v0 by Vercel projects, in the order it matters. Each one links to the service that fixes it.
A Server Action is an HTTP endpoint with a generated URL, and hiding the button that calls it protects nothing. We add a session check and input validation to every action that reads or writes user data.
Fixed by Security hardeningThe `const orders = [...]` v0 used to draw the table is still what the page renders. We add a real schema, a typed query layer, and migrations — and delete the fixtures.
Fixed by Database & queriesv0 reaches for client components whenever a hover state appears, which pushes data fetching to the browser and inflates the bundle. We move fetching back to the server and keep client boundaries where interactivity actually lives.
Fixed by Performance tuningAnything with that prefix ships to the browser. We audit the environment, move server secrets behind route handlers and actions, and check the built bundle for leaks.
Fixed by Security hardeningEach prompt made a new `DashboardCard`, `StatCard`, `MetricTile`. We collapse them into one, typed, and remove what nothing renders any more.
Fixed by Refactor & cleanupVercel gives you deploys for free; it doesn't give you error tracking, alerts or a runbook. We add them so a broken action pages you rather than your users.
Fixed by Monitoring & alertsA cleanup isn’t a rebuild. v0 by Vercel did real work, and most of it stays.
The front end usually is, or close to it. What isn't is everything the front end assumes: a database, authentication, authorisation on the Server Actions, validated inputs, and monitoring. v0 is a design tool that emits real code, and the code is honest about being a prototype — the sample data is right there in the components. The free audit tells you exactly how far it is from a launch.
No. A Server Action is a POST endpoint that any client can call with any arguments, whether or not your UI shows the button. Every action that touches user data needs to check the session and validate its inputs on the server. In v0 output we typically find none of them do, because v0 wasn't asked to think about who the user is.
Yes — that's the most common v0 engagement. We design the schema from the data the screens already assume, add a typed query layer with migrations on Supabase, Neon or Vercel Postgres, and replace the sample arrays screen by screen so nothing regresses.
We keep it. shadcn/ui is a good production choice and v0 uses it well. What we change is the code around the components: fewer client boundaries, one implementation per pattern, and data arriving from the server rather than from a constant in the file.
Start with the free audit. In 48 hours you'll know what's broken, what each fix costs, and whether it's even worth doing — before you've spent a dollar.
Free audit, no card · Fixed price before we start · Your code stays yours