caching - Abrarqasim Blogs

Partial Prerendering Isn’t a Flag Anymore in Next.js 16

Partial prerendering is now the App Router default via cacheComponents. Why my dashboard got slower after the upgrade, and the mental model that had to…

Rayyan | August 15, 2026 | 6 min

Web Development

Next.js Server Actions: Two Rules I Learned the Hard Way

Server Actions in Next.js 16 queue one at a time, and revalidateTag no longer means what it used to. The two rules that cost me…

Rayyan | July 31, 2026 | 9 min

Databases

Valkey vs Redis in 2026: The Fork I Actually Migrated To

Valkey vs Redis in 2026: what the license fork actually changed, why the migration is a one-line container swap, and when I would still stay…

Rayyan | July 27, 2026 | 7 min

Next.js

Next.js App Router Caching: The Defaults That Burned Me

Next.js 15 flipped App Router caching from opt-out to opt-in. What changed for fetch and GET route handlers, why it is safer, and how I…

Rayyan | June 20, 2026 | 7 min

Database

Valkey vs Redis in 2026: What I Switched and What Stayed

I moved some production caches to Valkey and kept Redis on others. Here's what actually changed, what stayed identical, and when I'd still pick Redis.

Rayyan | June 3, 2026 | 7 min