Fix: "new row violates row-level security policy" in Supabase (it's not what you think)
If you've shipped anything on Supabase, you've hit this: new row violates row-level security policy for table "notes" ``` Your first instinct is pa…
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When `await mutation()` lies: the `{ error }` destructuring that saves your weekend
Episode 2/4 of the mini-series The week Supabase lied to me 4 times . Episode 1 — 3 Supabase security incidents, one shared root cause: SECURITY DEFIN…
Your AI-built app works in the builder but breaks on deploy with a Supabase "permission denied" error. Here is why, and how to fix it.
You built an app in Lovable, Bolt, v0, or Cursor. It worked perfectly in the preview. You deployed it, opened the live URL, and now half the screen is…
Supabase vs Firebase
Both Supabase and Firebase promise the same thing: a backend you don't have to build, with auth, a database, storage, and real-time out of the box. Th…
RamenHire, Week 1: What Happens When Strangers Actually Read Your Code
A week ago, I launched RamenHire — a job board only for bootstrapped, profitable startups. This week was less about building new features and more abo…
How I Fixed Supabase Storage RLS Errors That the Dashboard UI Couldn't Solve
If you've ever spent hours staring at a 400 error on a Supabase Storage upload despite having RLS policies correctly configured in the dashboard — thi…
3 Supabase security incidents, one shared root cause: SECURITY DEFINER inherits EXECUTE TO PUBLIC
Episode 1/4 of the mini-series The week Supabase lied to me 4 times . The three following episodes cover a mutation silently swallowed by the SDK [CAN…
Your OTP regex assumes six digits. Supabase magic links don't.
Sign-in worked flawlessly in dev. Then a real user pasted a real code and got "invalid format" — before the code ever reached Supabase. The credential…
I Moved My Next.js Dashboard Logic Into Postgres. My Frontend Got Boring (And That's the Point).
My dashboard had a useMemo doing arithmetic it had no business doing. It was a Pokémon TCG Pocket collection tracker, but that part doesn't matter. Wh…
I built an AI that predicts football matches before kickoff — and forces it to stay honest
Most football "tipster" sites have the same trick: they show you the winners and quietly bury the losers. I wanted to build the opposite — an AI that …
I Built a Coin Ledger That Guilts Customers Into Coming Back 🧇
A few months ago I sat down to add "loyalty points" to Glazed, my waffle kiosk brand. Simple, right? Add a points column to the users table, increment…
I made a production ready auth scaffold with Nuxt and Supabase
I have a lot of ideas. The kind of ideas you get at midnight, the ones that seem brilliant, and then I have to implement auth and all traction on a br…
How to share Supabase auth between Next.js and Expo (one client, both platforms)
Most teams building a web + mobile product end up with two auth integrations that slowly drift apart. You don't need that. Here's how to run a single …
Self-Hosting Supabase on a Linux Server
Supabase has become one of the most popular open-source alternatives to Firebase, bundling a Postgres database, authentication, auto-generated REST an…
Supabase Shopify Backend: Side-Car Architecture (2026)
For high-volume merchants, relying solely on Shopify metafields to store relational data or custom customer records is an architectural dead end. A de…
How I Built Pathway AI: A Full-Stack SaaS Platform in 1 Month
How I Built Pathway AI: A Full-Stack SaaS Platform in 1 Month I built Pathway AI , a SaaS platform for international students planning their study abr…
I fuzzed my own Supabase RLS — and found a cross-tenant leak
Row-Level Security is the kind of thing that looks done. The policies are there, the app works, your tests are green. So you move on. The problem is t…
Как я собрал новостной агрегатор HypeNet на Cloudflare Workers + Supabase и что пошло не так
Привет, Хабр! Хочу поделиться опытом разработки новостного агрегатора HypeNet. Проект работает на связке Cloudflare Workers + Supabase, фронтенд - чис…
Supabase RLS Policy Design Patterns Beyond the Basics
Supabase RLS Policy Design Patterns Beyond the Basics Row Level Security is one of the most powerful features in Supabase — and one of the most misund…
I had real backend auth. The browser just walked around it.
Here's the thing nobody warns you about when you put Supabase behind a "real" backend. My stack is React + FastAPI + Supabase Postgres. Every write go…
Supabase Connection Pooling with PgBouncer on Vercel Serverless
Supabase Connection Pooling with PgBouncer on Vercel Serverless The most common production failure pattern for Next.js + Supabase apps on Vercel isn't…
Setting up Supabase Auth with Next.js in 10 minutes
Every time I started a new project, auth killed my momentum. Setting up JWT, hashing passwords, managing sessions, handling refresh tokens... before w…
Supabase Authentication & Authorization Patterns
Supabase Authentication & Authorization Patterns Authentication and authorization are the foundation of secure applications. Supabase provides a c…
I Built 'Chat With Your Docs' From Scratch — Supabase + pgvector + a Free Local Embedder
"Chat with your PDF / your notes / your docs" is everywhere. Today we build it from scratch and you'll see it's just three moves : retrieve, then gene…
Firebase, Supabase и BaaS: как мы к такому пришли и что там внутри
Всем привет! Ранее мы разбирались с одним конкретным примером - Supabase: как его поставить, зачем он нужен, какие есть аналоги и почему вокруг него в…
I built an SEO-first internet radio site — and learned why `curl` can't validate audio streams
I recently built Radio Balkan — a single-page web player that puts 750+ Balkan radio stations in one place: no ads, no sign-up, no cookie banners. It'…
I Cut My Next.js + Supabase App Load Time by 73% - Here Are the 5 Techniques That Actually Worked
I Cut My Next.js + Supabase App Load Time by 73% - Here Are the 5 Techniques That Actually Worked Last month, our SaaS dashboard was embarrassingly sl…
Next.js + Supabase Performance Optimization: From Slow to Lightning Fast
Next.js + Supabase Performance Optimization: From Slow to Lightning Fast Last month, I optimized a Next.js + Supabase application that was frustrating…
Add Video Processing to Your Vercel + Supabase App in 10 Minutes
Originally published at ffmpeg-micro.com Most Vercel + Supabase apps hit the same wall: a user uploads a video, and you need to do something with it. …
Optimistic UI Patterns with Next.js Server Actions and Supabase Realtime
Optimistic UI Patterns with Next.js Server Actions and Supabase Realtime The difference between an app that feels fast and one that feels slow often i…