From the studio

Fieldnotes

Field notes on AI-native products, design systems, web engineering, SaaS economics and modern infrastructure. New articles every week, sources included.

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React Compiler 1.0: when you still need useMemo and useCallback

Web Design and Engineering · Apr 23, 2026

React Compiler 1.0: when you still need useMemo and useCallback

React Compiler 1.0 (October 2025) auto-memoizes most components. Where useMemo, useCallback, and React.memo still earn their place, and what the compiler skips.

Design tokens vs CSS variables vs Tailwind, explained (2026)

Product Design · Apr 22, 2026

Design tokens vs CSS variables vs Tailwind, explained (2026)

Design tokens, CSS variables, and Tailwind sit at three layers: meaning, runtime values, and utility classes. How to pick, and how they stack together.

How to build a Next.js MCP server on an existing SaaS (2026)

AI and Automation · Apr 22, 2026

How to build a Next.js MCP server on an existing SaaS (2026)

Add an MCP server to a running Next.js 16 SaaS: the packages, the route handler, auth, and session state, plus the four failure modes you will hit.

The 12 GEO best practices that actually move citation rates in 2026

Infrastructure and SEO · Apr 21, 2026

The 12 GEO best practices that actually move citation rates in 2026

Twelve GEO practices we apply on every article, with the measured lift from Princeton, Averi, and Search Engine Land citation benchmarks.

Studio vs freelancer vs agency in 2026: who fits which budget

Business and Scale · Apr 21, 2026

Studio vs freelancer vs agency in 2026: who fits which budget

A decision guide for founders and product owners choosing between a freelancer, a boutique studio, or a full-service agency in 2026.

Server Components vs Client Components: the decision tree we follow

Web Design and Engineering · Apr 20, 2026

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".

Third-party component libraries: an expensive shortcut

Product Design · Apr 20, 2026

Third-party component libraries: an expensive shortcut

Third-party component libraries promise speed but lock you into upgrade hell, brand sameness, and rewrites every two years. Here is what actually works.

What is MCP and why your SaaS needs an MCP server in 2026

AI and Automation · Apr 19, 2026

What is MCP and why your SaaS needs an MCP server in 2026

MCP is the open protocol AI agents use to call your SaaS. Here is what it is, how it works, and when your product should ship a server in 2026.

What is Generative Engine Optimization (GEO) vs SEO

Infrastructure and SEO · Apr 19, 2026

What is Generative Engine Optimization (GEO) vs SEO

Generative Engine Optimization (GEO) is how content gets cited inside ChatGPT, Perplexity, and Google AI answers. Here is what it changes versus SEO.

The agency tax: why mid-market companies overpay for digital work

Business and Scale · Apr 18, 2026

The agency tax: why mid-market companies overpay for digital work

Mid-market SaaS companies routinely pay 3x to 15x freelancer rates for the same deliverable. Here is where the extra money goes, and when a studio closes the gap.

Next.js 16 + React 19: the 3 changes that break old SaaS code

Web Design and Engineering · Apr 18, 2026

Next.js 16 + React 19: the 3 changes that break old SaaS code

Turbopack is the default bundler, request APIs like params and cookies are now async, and React Compiler 1.0 is stable. What breaks moving a SaaS off Next 15.

What is a design system audit and when you need one

Product Design · Apr 18, 2026

What is a design system audit and when you need one

A design system audit is a structured review of token usage, component drift, accessibility compliance, governance gaps, and adoption rate that reveals where a product's UI has decayed since launch. It produces a ranked list of fixes, a layer-level compliance score, and a repair roadmap with owners, dates, and order of operations.

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2026