Web Design and Engineering
Core Web Vitals on Next.js in 2026: how to ship green
Concrete steps to hit Good on LCP under 2.5s, INP under 200ms, and CLS under 0.1 on a Next.js 16 SaaS, plus how to read field data when Lighthouse lies.
Apuntes
Artículos sobre productos AI-native, design systems, ingeniería web, economía SaaS e infraestructura moderna. Nuevas publicaciones cada semana, con fuentes.
Web Design and Engineering
Web Design and Engineering
Immersive web stack in 2026: Lenis, GSAP, and what to skip
Lenis (3 kB), GSAP free since April 2025, ScrollTrigger for scroll math, and native CSS scroll-driven animations. The 2026 stack we ship in production.
Web Design and Engineering
TypeScript strict mode: the 8 settings we never turn off
TypeScript's strict: true flag turns on 8 separate checks. Most codebases keep strict on at the root and quietly disable one or two of them inside a problem file. Here is each of the 8, what it catches in production, and the three flags outside the bundle that we still turn on for every project.
Web Design and Engineering
Next.js development agency vs in-house: when each one wins in 2026
A US senior Next.js hire costs $234,000 fully loaded and takes six weeks to find. Agency rates run $60 to $250 per hour. Here is how each one wins.
Web Design and Engineering
Next.js security in 2026: server actions, middleware, auth
Next.js patched 13 advisories in 2026 covering middleware bypass, cache poisoning, and SSRF. Here is what changed and how to ship server actions safely now.
Web Design and Engineering
Edge runtime vs Node runtime: when each one wins for SaaS
Edge wins on cold start and global latency. Node wins on libraries, duration, and database work. The decision is not binary, and most production SaaS use both.
Web Design and Engineering
Why we removed Tailwind from production: a CSS-only design system
After years of running Tailwind alongside our own design system, we removed it from production. Here is the architecture that replaced it and what changed.
Web Design and Engineering
Modern CSS in 2026: cascade layers, container queries, color functions
Cascade layers, container queries, and color functions are now production defaults. What modern CSS in 2026 actually delivers and where it falls short.
Web Design and Engineering
Why we still pick Next.js over Astro for most SaaS in 2026
We have shipped both Next.js and Astro this year. For SaaS specifically, Next.js stays our default. Here is the honest tradeoff in 2026.
Web Design and Engineering
The React Compiler is here: should you still memoize anything by hand
React Compiler 1.0 shipped in October 2025. Here is where useMemo, useCallback and React.memo still earn their keep, and where the compiler replaces them.
Web Design and Engineering
Server Components vs Client Components: the decision tree we follow
The five-step decision tree we apply on every Next.js 16 project to decide when a component stays server-side and when it needs "use client".
Web Design and Engineering
Next.js 16 + React 19 for SaaS: what's actually new in 2026
Turbopack as default, async request APIs and React 19's stable Compiler. The three changes a new SaaS project actually needs to plan for in 2026.