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$
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I will fix build lovable ai google oauth supabase app replit ai website firebase oauth
Henry O
About this gig
Struggling with broken OAuth? I'll fix it fast, clean, and permanently.
Whether you built your app on Lovable AI, Replit AI, or any no-code/vibe-coding platform Google OAuth and Firebase Auth errors are one of the most frustrating things to debug. Redirect URI mismatches, Supabase session loops, blank screens after login, CORS errors I've seen and fixed them all.
I specialize in:
Fixing Google OAuth errors on Lovable AI & Replit AI-generated apps Supabase Auth integration login, session persistence, RLS policies Firebase Authentication setup & troubleshooting (Google, Email, GitHub) Redirect URI / callback URL mismatches (the #1 OAuth killer) OAuth consent screen configuration in Google Cloud Console Environment variable setup (.env, Supabase keys, Firebase config) Building auth flows from scratch if your current setup is too broken to fix Social login (Google, GitHub, Facebook) across any stack.
Tech I work with: React, Next.js, Vite, Lovable AI apps, Replit projects, Supabase, Firebase, Vercel, Netlify, Render
Why developers choose me: I don't just patch the error I explain what went wrong so it doesn't happen again. You'll get clean, working auth with notes on what was fixed.
Get to know Henry O
Henry O
Lovable Expert
- FromNigeria
- Member sinceMar 2026
Languages
English, French, Spanish, Italian
I build intelligent, voice-powered AI systems using Lovable AI, Vapi AI, and Retell AI, turning ideas into fully functional, production-ready products fast.
Whether you need a stunning AI-powered web app built with Lovable, a smart voice assistant powered by Vapi, or a lifelike conversational AI agent on Retell, I've got you covered from zero to launch.
🔹 Full-stack AI apps built in Lovable
🔹 Custom AI voice agents with Vapi
🔹 Human-like conversational AI with Retell
If you're a business owner, startup, or agency that wants to automate with AI, let's build something powerful together.
Other Vibe Coding Services I Offer
FAQ
My app was built with Lovable AI / Replit AI, can you still fix it?
Absolutely. This is my bread and butter. AI-generated apps often have half-configured auth setups. I know exactly where they break and how to fix them.
What do you need from me to get started?
Access to your project repo or codebase (GitHub, Replit link, or zip), your Google Cloud Console project (viewer/editor access or screenshots), and your Supabase or Firebase project details. I'll send you a checklist after you order.
I don't know if it's a Supabase issue or a Firebase issue, does that matter?
Not at all. Send me the error message or a screen recording and I'll diagnose it before we begin. Message me first and I'll point you to the right package.
Will you touch my whole codebase or just the auth part?
I only touch what's needed to fix auth, I won't refactor your whole app. Everything I change, I document.
What if the fix doesn't work after delivery?
That doesn't happen, but if it does, I fix it. All packages include revisions and I stand behind my work. Standard and Premium buyers get dedicated post-delivery support windows.
Can you build the auth from scratch if my current setup is too broken?
Yes, that's the Standard or Premium package depending on your stack. Message me with details and I'll scope it out for you.
Do you work with custom domains?
Yes. Authorized domain configuration for OAuth (both Google Cloud Console and Supabase/Firebase) is included in the Premium package and available as an add-on for Standard.
