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Claude Code Custom System Prompts in 2026: Overriding Defaults, Appending Instructions, and What You Cannot Change
November 2, 2026
Developers discover that Claude Code ignores custom instructions because they set them in the wrong layer. Learn the three ways to shape Claude Code behavior, what the system prompt actually controls, and which parts remain locked no matter what you configure.
Next.js Prefetching in App Router: How Link Partial Prefetch Works and Why Your Pages Still Feel Slow
November 1, 2026
Next.js App Router prefetching promises instant navigation, but partial prefetch defaults and router cache expiration create surprising slowdowns. Learn how Next.js 16.3's new primitives fix the root causes and how to debug blocking navigations before users notice.
Next.js 16 use cache Directive: Granular Caching at the Function Level and What It Replaces
October 31, 2026
Next.js 16 replaces implicit caching with explicit use cache directives. Learn function-level caching, cacheLife profiles, migration from unstable_cache, and production cache storage patterns.
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