I will fix, finish and launch your ai generated web app

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Fumiaki T

About this gig

Your AI-generated app looks closebut sign-in fails, data does not save, the AI feature breaks, or deployment never finishes.


I will inspect the existing code, find the real blocker, and finish the smallest scope that gets your app working.


I can help with:

Lovable, Bolt, Replit, v0, Cursor, or Claude Code projects

Next.js, React, TypeScript, Node.js, and API routes

Supabase Auth, database, storage, and Row Level Security

Stripe payments, subscriptions, and webhooks

OpenAI or Claude API errors

Build, environment-variable, and deployment failures

Production testing and written handoff


Why work with me:

20+ years shipping production web applications

AI-assisted speed with personal code review and testing

Clear fixed scope before work starts

Asynchronous communication; no meeting required


Send the repository or preview link, the error, and what done should look like. I will recommend the smallest package that can solve it.

Get to know Fumiaki T

Fumiaki T

AI Web App Rescue Expert for Stripe Supabase and OpenAI

5.0(1)
  • FromJapan
  • Member sinceSep 2022
  • Last delivery3 months
  • Languages

    Japanese, English
Japan-based web engineer with 20+ years of experience. I rescue AI-generated and existing web apps that are stuck, insecure, or not ready to launch. I fix Next.js and React apps, secure Supabase authentication and RLS, integrate Stripe payments and subscriptions, and add OpenAI or Claude features. I run a web business with $1M+ lifetime revenue and 1M+ monthly pageviews at its peak. My workflow is AI-assisted, then personally reviewed and tested. You get a clear fixed scope, async communication through Fiverr messages, and a practical plan within 24 hours. No meetings are required.

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