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Guides, stories & hard-won lessons
Everything we know about building production Next.js apps — no fluff, no filler, just things that actually help you ship.
Refresh Tokens Explained — Why Your JWT Setup Is Probably Wrong
Short-lived access tokens + refresh tokens sounds simple. Most implementations get it subtly wrong in ways that hurt security or UX.
Ștefan Binisor · May 23, 2026
Stripe Checkout Integration with Next.js — The Complete Guide
Everything you need to accept payments in Next.js: hosted Checkout sessions, webhooks, and the gotchas that will bite you at 2am.
Robert Seghedi · May 23, 2026
Database Transactions in Serverless: What Can Go Wrong (And Often Does)
Serverless functions and database transactions are a dangerous combo. Here's every way they can fail and how to actually handle it.
Ștefan Binisor · May 23, 2026
Code Review Culture: What to Look For Beyond Syntax
Linters catch syntax. Good reviewers catch the stuff that breaks your app at 3am six months from now.
Robert Seghedi · May 23, 2026
Form Validation in React: Zod vs Valibot vs Native — Pick the Right Tool
Three solid approaches to form validation in React, when to use each, and why we stopped reaching for Zod by default.
Ștefan Binisor · May 23, 2026
OAuth Flows Explained for Developers Who Just Want Login to Work
OAuth2 has four flows, confusing naming, and enough edge cases to ruin your afternoon. Here's what actually matters when building login.
Ștefan Binisor · May 23, 2026
CSS Grid vs Flexbox: A Decision Guide for Real Layouts
Stop guessing which one to use. Here's how we actually decide between Grid and Flexbox when building real UI — with no hand-wavy theory.
Robert Seghedi · May 23, 2026
Stripe Dunning Done Right: Recovering Failed Payments Without Losing Customers
Failed payments kill SaaS revenue silently. Here's how to build a dunning system in Stripe that recovers money without torching your churn rate.
Ștefan Binisor · May 22, 2026
React useMemo and useCallback: When to Use Them and When to Just Ship It
Most React performance problems aren't solved with useMemo. Here's how to tell the difference between real optimization and premature paranoia.
Ștefan Binisor · May 22, 2026