Why your React useEffect is revoking its own blob URL
An image tool that worked exactly once, then failed on every adjustment. The file format was innocent. A cleanup effect keyed on the URL it revokes was destroying its own source image.

next/og: Expected div to Have Explicit display: flex, Fixed
Satori throws this error when a div has one child, not just when it has several. Here is the actual rule, the four cases where the message misleads you, and what each workaround costs.
React Server Components in Depth: What They Are and When to Use Them
React Server Components fundamentally change how we think about rendering. This guide breaks down how they work, how they differ from Client Components, and the patterns that will make your Next.js apps faster.
Getting Started with Next.js 16: A Complete Guide
Everything you need to know to build fast, modern web applications with Next.js 16 App Router, Server Components, and TypeScript. From project setup to production deployment.