Master Next.js & Supabase
In-depth guides covering everything from React Server Components to production deployment. Build faster, ship better, scale confidently.
Featured Guides
Complete Guide to Building SaaS with Next.js and Supabase
Build a production SaaS with Next.js 15 and Supabase: auth, multi-tenant data, billing, and the deploy checklist that actually ships.
Deploying Next.js + Supabase to Production
Ship Next.js + Supabase to production: Vercel setup, env hygiene, safe migrations, CI/CD, and the rollback paths the docs skip.
Next.js Performance Optimization for Indie Developers
Ship a fast Next.js app: Core Web Vitals, image and font optimization, bundle trimming, caching, and the RUM checks that catch regressions.
Next.js & Supabase Stripe Subscriptions: SaaS Guide
SaaS billing with Stripe subscriptions in Next.js + Supabase: webhooks, user syncing, and gated content for production.
n8n Beginner Guide 2026: Build Your First Automation
Learn n8n from scratch: installation, core concepts, your first workflow, and real automation examples that save hours every week.
Best Ollama Models for n8n AI Agents (2026 Guide)
Build n8n AI agent workflows with Ollama local LLMs — best models, setup, working examples. No OpenAI bills, full data privacy.
18 n8n Templates for Freelancers & Solopreneurs (2026)
18 ready-to-use n8n workflow templates for freelancers and solopreneurs — onboarding, invoicing, lead gen, content, and project management automation.
Supabase Realtime: Guide to Building Live Applications
Master Supabase Realtime: Postgres Changes, Presence, Broadcast, and building real-time features like chat, notifications, collaborative editing.
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Cloud Firestore vs Realtime Database in 2026
Firestore wins for almost every new app — richer queries, multi-region, saner scaling. Realtime Database survives for one job. The verdict, with numbers.
Next.js 16 Removed next lint: ESLint 9 Migration
Next.js 16 removed next lint and no longer lints on build. Migrate to ESLint 9 flat config with the codemod, an eslint.config.mjs, and the CI step.
Is It Safe to Expose Firebase API Key to the Public?
Firebase-only API keys can be public. Apply API restrictions, Security Rules and App Check; keep keys for other services separate.
Next.js Pages to App Router Migration Gotchas
Migrating Pages Router to App Router? Avoid cookies timing bugs, router.events removal, metadata conflicts, and auth middleware breaks.
Supabase Auth vs Clerk in 2026: The Production Verdict
Verdict up front: Clerk for complex org and B2B auth, Supabase Auth when your data already lives in Postgres behind RLS. 2026 MAU pricing compared.
Supabase RLS Policy Not Working: 2026 Debug Checklist
Supabase RLS policy not working? Find auth.uid nulls, uuid/text mismatches, USING vs WITH CHECK bugs, role leaks, service key traps, and safe fixes today.
How to Convert a String to Number in TypeScript: 2026 Fix
Fix silent NaN errors when converting strings to numbers in TypeScript. Learn explicit parsing, type narrowing, and runtime validation.
TypeScript ! Operator: Fix Object Is Possibly Undefined
What the ! operator does in TypeScript, why it causes "Object is possibly undefined" errors, and how to replace it safely.
Interfaces vs Types in TypeScript: 2026 Best Practices
Clarify when to use interfaces vs types in TypeScript for scalable production apps — with concrete examples and real-world tradeoffs.
Supabase Joins: Nested Selects, !inner, Left Joins (2026)
select('*, other_table(*)') is Supabase's join syntax. Real examples for !inner joins, filtering joined rows and disambiguating two foreign keys.
n8n Queue Mode Checklist: Redis, Postgres 16+, Workers
Run n8n queue mode with Redis, Postgres 16+ and workers sharing one N8N_ENCRYPTION_KEY — plus the binary-data filesystem caveat the docs bury.
Insert into multiple tables with one Supabase API call 2026
Insert into several tables with one Supabase request? Wrap the inserts in a PostgreSQL function and call it via the Supabase client.
NextJS Warning: Extra attributes from the server – Fix 2026
Seeing 'Extra attributes from the server: data-new-gr-c-s-check-loaded'? Why it appears and how to eliminate it in Next.js + Supabase.
Window is not defined in Next.js – 2026 Fix for React Apps
'window is not defined' in Next.js? The cause and a concise fix that works in both server and client environments.
Production RAG with Supabase pgvector and Next.js
Build a production-grade RAG app with Supabase pgvector, Next.js App Router, hybrid search, reranking, streaming responses, evals, and cost tracking.
Zero-Downtime Supabase Migrations: Expand/Contract (2026)
Ship Supabase schema changes while traffic flows: expand/contract steps, lock_timeout settings, batched backfills and RLS-safe rollouts wired into CI.
Build a Real-Time Chat App: Next.js + Supabase Production
A complete real-time chat app with Next.js 15 + Supabase: schema, RLS policies, presence, typing indicators, pagination, and production gotchas.
Supabase + Google OAuth on Next.js 15: Working Guide (2026)
Complete Google OAuth setup for Supabase + Next.js 15 (App Router, @supabase/ssr): Cloud Console config, redirect allowlists, refresh tokens, scopes.
Next.js 15 Middleware: Auth, Rate Limiting & Edge Guide
Next.js 15 middleware patterns: auth, rate limiting, A/B testing, geolocation, bot protection, security headers — full Vercel Edge code.
Next.js 15 Partial Prerendering: Guide
Next.js 15 Partial Prerendering: the static shell / dynamic holes model, Suspense boundaries, streaming, caching, and migration paths.
Next.js + Supabase Production Launch Checklist (47 Items)
47-check pre-launch audit for Next.js 15 + Supabase: security, RLS, performance, observability, auth — every item caused a real incident.
Scaling Next.js + Supabase: 0 to 100K Users Playbook
Scaling Next.js + Supabase from 0 to 100K users: connection pooling, caching layers, read replicas, queue offloading, and cost controls.
Supabase Auth + Middleware: Session Guide for Next.js 15
Supabase auth and session management in Next.js 15: middleware patterns, cookie handling, refresh tokens, MFA, and the silent failures that ruin auth.
Error Handling and Observability for Next.js + Supabase
Comprehensive guide to error handling, logging, monitoring, and observability for production Next.js and Supabase applications.
Supabase Storage File Uploads in Next.js: 2026 Guide
Upload files from Next.js to Supabase Storage with working code: bucket RLS policies, signed URLs, progressive uploads and image transforms via CDN.
Database Design for Next.js + Supabase: Optimization Guide
Master PostgreSQL database design, indexing strategies, query optimization, and scaling patterns for high-performance Next.js and Supabase applications.
Advanced Authentication Patterns with Next.js and Supabase
Advanced Next.js + Supabase auth patterns: OAuth, magic links, passwordless, custom JWT, multi-tenant auth, and enterprise SSO integration.
Next.js + Supabase Background Jobs & Async Patterns
Background jobs and async patterns for Next.js + Supabase: database queues, pg_cron, and Edge Functions — no external services.
Supabase SSR Sessions in Next.js App Router (2026 Guide)
How createServerClient, createBrowserClient and middleware cooperate to refresh the Supabase auth cookie — and why getUser() belongs on the server.
Supabase Connection Pooling: PgBouncer on Vercel Serverless
Configure Supabase PgBouncer pooling for Vercel serverless — avoid connection exhaustion, choose pool modes, tune for production.
Supabase RLS Policy Design Patterns Beyond the Basics
Master advanced Supabase RLS policy patterns for multi-role access, team permissions, and hierarchical authorization.
Next.js Server Actions with Supabase: Complete Guide
Complete guide to Next.js Server Actions with Supabase. Learn validation, error handling, optimistic updates, and production patterns for type-safe forms.
Next.js + Supabase Data Fetching: Server Components
Data fetching patterns in Next.js with Supabase: Server Components, streaming, parallel queries, and caching for optimal performance.
Type Safety Guide for Next.js + Supabase in TypeScript
Type safety in Next.js with Supabase: database type generation, Zod validation, type-safe queries, and production TypeScript patterns.
Supabase Postgres Functions & Triggers: Developer Guide
Complete guide to Postgres functions and triggers in Supabase. Learn PL/pgSQL, automated workflows, business logic, and database-level validation patterns.
Supabase Multi-Tenant Architecture: Best Practices 2026
One codebase, isolated tenants: RLS policies, subdomain routing, and billing for a multi-tenant SaaS on Next.js + Supabase — with schema and code.
Next.js Webhook Handling and Event-Driven Architecture
Webhook handling and event-driven architecture with Next.js and Supabase: security, retry mechanisms, and distributed system patterns.
Supabase Edge Functions in Next.js: Setup to Cron (2026)
From supabase functions new to production: Deno runtime gotchas, built-in SUPABASE_URL and SERVICE_ROLE_KEY env vars, webhook triggers and cron jobs.
Testing Next.js + Supabase: Unit, Integration, RLS, E2E
Four layers that catch real bugs: Jest units, integration on local Supabase, pgTAP for RLS policies, Playwright E2E — plus the CI to run them all.
React Server Components: Complete Deep Dive
Master React Server Components with this comprehensive guide. Learn RSC architecture, data fetching patterns, streaming, and best practices for Next.js 15.
AI Integration for Next.js + Supabase Applications
Integrate AI into Next.js and Supabase: OpenAI chat, vector search, RAG, and streaming UIs with production patterns and cost guardrails.
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