Guides

How to solve specific rendering problems — with working code, and honest notes on when you do not need us for it.

• Dynamic Open Graph images in Next.jsThree approaches for per-page social cards in the App Router — including when to use the free built-in instead of an API.
• Record a scrolling video of any web pageOne API call, or Playwright and ffmpeg yourself — plus the frame-rate detail that makes most DIY recordings look stuttery.
• Turn an HTML page into a PDF via APIInvoices and reports from a URL, and how to handle documents that sit behind a login without leaking a session.