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USD
I will fix your claude code, cursor or lovable app
Zlatko M
Level 2
About this gig
Is your Claude Code, Cursor, Lovable, Bolt, Replit, or vibe-coded app broken, unfinished, or not ready for launch?
I will diagnose, fix, and improve your AI-generated web application so it works reliably in production. Whether you are dealing with bugs, deployment errors, broken authentication, database issues, API failures, payment problems, or an unresponsive interface, I will help turn your prototype into a stable, functional product.
I can help with:
- Claude Code and Cursor app debugging
- Next.js, React, and TypeScript fixes
- Supabase, Firebase, and database integration
- Authentication and user account issues
- Stripe payment integration
- API and third-party integrations
- Lovable, Bolt, Replit, and v0 app repair
- UI/UX and mobile responsiveness
- GitHub and Vercel deployment
- Code cleanup and production preparation
You will receive clean, maintainable work, clear communication, and a solution focused on the actual problem, not temporary patches.
Please message me before ordering so I can review your app, codebase, and requirements.
Get to know Zlatko M
Zlatko M
Claude Code and Nextjs Developer for AI Apps SaaS and Automation
Level 2
- FromCroatia
- Member sinceDec 2021
- Avg. response time1 hour
- Last delivery4 months
Languages
English, Croatian
I turn AI-generated prototypes into reliable, production-ready software. I build and repair Claude Code, Cursor, Lovable, and Next.js apps, including SaaS MVPs, dashboards, client portals, AI features, payments, databases, APIs, and automations. I fix broken logic, improve architecture and UI, connect integrations, and deploy stable products for real users. 7+ years of experience, 120+ projects delivered, $100K+ earned, and 50+ five-star reviews.
Among my clients
EGC
Vault Apps
Mavesta Media
My Portfolio
Other Vibe Coding Services I Offer
FAQ
What types of apps can you fix?
I can fix web apps built with Claude Code, Cursor, Lovable, Bolt, Replit, v0, Next.js, React, TypeScript, Supabase, Firebase, and similar modern development tools.
Can you fix an app that was generated mostly with AI?
Yes. I specialize in diagnosing and repairing AI-generated or vibe-coded apps, including broken logic, messy code, incomplete features, and production issues.
Do you work with Claude Code projects specifically?
Yes. I can review, debug, improve, and complete projects built with Claude Code, including Next.js apps, SaaS products, dashboards, internal tools, and MVPs.
Can you fix authentication and login problems?
Yes. I can fix login, signup, password reset, session, role-based access, Supabase Auth, Firebase Auth, and other authentication issues.
Can you fix Supabase or database problems?
Yes. I can repair database connections, tables, queries, permissions, Row Level Security policies, migrations, and data flow issues.
Can you help with Stripe or payment integration?
Yes. I can fix or implement Stripe checkout, subscriptions, webhooks, customer portals, payment status handling, and billing-related workflows.
Can you deploy my app to Vercel?
Yes. I can fix build errors, environment variables, deployment configuration, domain setup, GitHub integration, and Vercel production issues.
Can you improve the design and mobile responsiveness?
Yes. I can fix layout problems, inconsistent styling, poor mobile responsiveness, broken components, and general UI/UX issues.
Do you provide a full app audit?
Yes. The Premium package includes a broader review of your codebase, critical user flows, integrations, deployment setup, performance, and launch readiness.
What do you need before starting?
Please send your project link, GitHub repository access, technology stack, current errors, and a clear description of what is not working. Message me before ordering so I can recommend the correct package.
