Next.js Performance in 2026: A Field Guide for App Router Teams
Where App Router apps actually lose time — oversized client bundles, waterfalls and unclear caching — and the fixes that move Core Web Vitals in production.
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Field notes from building production software
Practical writing for senior developers, engineering managers and technical founders — performance, data, SaaS architecture, applied AI, payments and mobile.
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Next.js 15 Server Actions in Production: What We Learned
Server Actions remove a whole layer of API boilerplate — but they change how you think about validation, caching and security. Here's our checklist.