I will fix your react nextjs and supabase bugs build errors and deployment issues

J
johncmdev
J
johncmdev
John
Sommige informatie wordt in het Engels weergegeven.

Over deze dienst

YOUR APP IS BROKEN AND YOU NEED IT WORKING.


I fix one clearly defined problem in React, Next.js, TypeScript or Supabase apps. You get the fix, testing, and a written explanation of the cause.


WHAT I FIX MOST OFTEN

· Next.js build failures and Vercel deploy errors

· Hydration and "works locally, breaks in production"

· Supabase auth: login, redirects, sessions, RLS

· API and integration issues

· Broken mobile layouts

· Forms that won't submit

· Small React and TypeScript bugs


HOW IT WORKS

1. You send the repo or URL and how to reproduce it

2. I confirm I can reproduce it before you pay beyond the gig

3. I fix it, test it, and write up what was wrong

4. One revision on the original issue is included


WHO I AM

I've shipped two live products on this stack: baandesk.com (AI receptionist, LINE bot, three languages) and prep-less.com (SaaS for ESL tutors). I use Claude Code to diagnose fast and stay responsible for what ships.


WHAT I DON'T DO

No security audits, no crypto or payment work, no whole-app rebuilds. If your problem can't be clearly scoped, I'll say so instead of taking your money.


Message me with the error and I'll tell you honestly if I can fix it.

Respecteer de rechten van derden

Let erop dat het tegen het beleid van Fiverr voor freelancers is om thema's, templates of andere elementen in het geleverde werk op te nemen die inbreuk maken op de rechten van derden of toepasselijke wetten. Lees er meer over in onze Gids voor verantwoorde digitale creatie.

Maak kennis met John

John

React, Nextjs and Supabase Bug Fixes, AI Assisted Web App Support

  • Afkomstig uitCanada
  • Lid sindsjul 2026
  • Gem. reactietijd1 uur
  • Talen

    Engels
I fix broken React, Next.js and Supabase apps. Usually it's one specific thing. A build that dies on Vercel but runs fine locally. A Supabase login that dumps the user on a blank page. A form that swallows submissions without a word. I've shipped two products on this stack. Baan Desk answers guesthouse messages on LINE in three languages. Prep-less writes lesson plans for ESL tutors. Both are live, go and look. Send me the error and how you reproduce it. I'll tell you straight whether I can fix it before you order anything.