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Fiverr Pro
English
$
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I will fix, debug, and optimize your lovable, bolt, or nextjs ai app
Antoine Bernard
About this gig
Are you building a SaaS app using Lovable AI, Bolt.new, v0, or Cursor, but stuck on frustrating code bugs, broken authentication, or failed Stripe webhooks?
I specialize in debugging, refactoring, and optimizing modern Web Applications built with Next.js, React, Supabase, and Tailwind CSS. Whether your app is throwing hydration errors or your database queries are failing, I will fix the underlying code so your application runs smoothly.
What I Can Fix & Optimize For You:
- Bug fixing for Lovable.dev, Bolt.new, v0, and Replit generated apps
- Next.js (App Router) runtime, compilation, and hydration errors
- Payment gateway integration: Stripe Checkout, Webhooks, and subscription logic
- State management and API integration issues
- UI alignment, responsive Tailwind CSS fixes, and mobile responsiveness
- Production deployment to Vercel or Netlify with custom domain configuration
Why Work With Me?
- Clean, maintainable, and well-commented code
- Fast turnaround time with clear communication
Don't let technical bugs stall your launch. Send me a message with your bug details or repository link, and let's get your app back on track!
Get to know Antoine Bernard
Antoine Bernard
Full Stack Next js Developer SaaS MVP Builder Vibe Coding Specialist AI Web App
- FromFrance
- Member sinceOct 2026
- Avg. response time1 hour
Languages
English, French, German, Spanish, Dutch
Full-stack web app developer specializing in Next.js, Supabase, and AI integrations. I build custom SaaS MVPs, convert Figma designs to clean React code, integrate Stripe subscription billing, and deploy scalable web apps on Vercel. I build and fix modern web applications created with AI coding tools like Claude Code, Cursor, Lovable, Bolt, and v0. From resolving React bugs to setting up AI agents and payment gateways, I deliver secure, high-performance web software. Send a message to discuss your web application project.
Other Vibe Coding Services I Offer
FAQ
Do you need access to my GitHub repository?
Yes, providing repository access (or inviting me as a collaborator) allows me to inspect the code, debug locally, and push the verified fixes directly.
Can you fix apps generated purely by AI tools like Lovable or Bolt?
Absolutely. AI code generators often leave behind state management issues, missing environment variables, or broken API hooks. I inspect the codebase, fix the structural errors, and ensure it runs reliably.
What if my bug requires backend database changes?
If your app uses Supabase or PostgreSQL, I can adjust Row Level Security (RLS) policies, rewrite database functions, and verify API routes under the Standard or Premium package.
