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I will fix deploy lovable v0 bolt replit vibe app vercel supabase base44
Joshua C
About this gig
Your Lovable or v0 app works perfectly in preview. Then you deploy to Vercel
and it breaks blank white screen, users can't log in, Stripe never fires,
404s everywhere. That's not bad luck. That's a predictable gap between vibe
coding preview and real production.
The preview silently injects env vars, proxies Supabase, and papers over RLS.
Production does none of that every connection must be explicit. Most sellers
just patch symptoms. I trace the root cause and fix it properly.
What I fix and deploy:
- Missing env vars causing blank white screens on Vercel
- SPA routing 404s React Router breaks without vercel.json rewrite rules
- Supabase auth loops, RLS misconfigs, broken OAuth redirect URLs
- Stripe webhook failures and checkout not unlocking premium access
- Node version mismatches and wrong build settings on Vercel
- Base44, Bolt.new, Replit, and Claude Code apps failing after deployment
- Custom domain, DNS, and SSL on Vercel and Netlify
- CORS errors and hardcoded localhost references blocking API calls
- CI/CD pipeline setup with GitHub auto deploy
Drop me your app link and what's broken I'll tell you exactly what the issue is before you order.
Get to know Joshua C
Joshua C
I fix vibe coded apps that break the moment they go live on Vercel
- FromUnited States
- Member sinceJun 2026
Languages
English
Vibe coded apps break after deployment. Most freelancers patch the surface.. I fix the root cause.
I specialize in rescuing Lovable, v0, Bolt.new, Base44, Replit, and Claude Code apps that crash on Vercel or Netlify. White screens, auth loops, 404s, broken Stripe, Supabase RLS failures, I've seen every failure pattern and know exactly where to look first.
Non technical founders trust me because I don't hide behind jargon. I tell you what broke, why it broke, and what I'm fixing before I start and after I'm done.
Send me your app link. I'll tell you what's wrong before you spend a dollar.
FAQ
My app works in Lovable preview but shows a blank screen on Vercel — why?
This is the most common deploy failure. Lovable preview injects your environment variables silently.. Vercel does not transfer them automatically. I copy every secret from Lovable to your Vercel environment settings, redeploy, and verify your app loads with a real authenticated user before delivery.
Every page except the homepage gives a 404 on Vercel — can you fix it?
Lovable apps use React Router for all client side navigation. Vercel looks for a physical file at each URL path, finds nothing, and returns a 404 error. I add a vercel.json rewrite rule redirecting all paths to index.html. This is fixed quickly once root cause is confirmed in your Vercel build logs.
What do you need from me to start fixing my broken Vercel deployment?
Share your live Vercel URL, a description of what is broken, and your GitHub repo access or a project zip file. If Supabase or Stripe keys are involved, I walk you through sharing them securely. No passwords needed read only repository access is more than sufficient to fully diagnose your problem.
Can you fix Supabase auth loops and login that breaks after deployment?
Yes. The most common cause is that OAuth redirect URLs in Supabase still point to the Lovable preview domain, not your production Vercel URL. I update all redirect URLs, verify RLS policies are enabled, and test a full sign-up and login flow on the live domain before marking the work complete.
Does this cover Base44, Bolt.new, Replit, and v0 apps and not just Lovable?
Yes. I fix apps built on Lovable, v0, Bolt.new, Replit, Base44, and Claude Code deployed to Vercel or Netlify. Failure patterns are nearly identical across all similar platforms: missing env vars, SPA routing misconfigs, and Supabase backend connections that only break under real production traffic.
What if you can't fix the issue — do I get a refund?
I assess your project fully and honestly before beginning work. If the issue falls outside your package scope, I tell you upfront not after. For problems I commit to and cannot resolve, I work toward a fair and thoroughly honest resolution. You will never be charged for work that delivers nothing.
My Stripe payments worked in preview but aren't processing on the live site
Your Stripe webhook endpoint still points to a preview or localhost URL after deploy. I update the webhook to your live production domain, confirm the signing secret is correctly set inside your Vercel env vars, and run a real test checkout to fully verify payments process correctly before delivery.
Can you set up a custom domain and SSL on Vercel for my vibe-coded app?
Yes, this is included in Standard and Premium packages. I configure the DNS records at your registrar, connect your custom domain inside Vercel, provision the SSL certificate, and confirm HTTPS is fully active before delivery. Works with Namecheap, GoDaddy, Cloudflare, and all major registrars.
Can you also add CI/CD so my app auto deploys when I push to GitHub?
Yes, GitHub auto deploy via Vercel is included in the Premium package. Every push to your main branch triggers a new production deployment automatically. I configure the GitHub integration, set branch deploy rules, and verify the first automated deploy works end to end before delivery.
Another freelancer already tried to fix it and made things worse — can you help?
Yes, this happens more often than you expect. Send me your app state and repo access. I run a fresh diagnostic directly from your Vercel build logs and browser console errors.. zero assumptions carried from any prior work at all. Previous failed attempts will not slow my diagnosis or delay delivery.
