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The most common errors when building apps with Claude
Seven mistakes we see repeatedly in production Claude apps. Some cost you tokens, some cost you money, one or two can cost you the company. Each one has a simple fix.
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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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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.
Product Design
Design tokens vs CSS variables vs Tailwind: what each one solves
Design tokens, CSS variables, and Tailwind get conflated in 2026 stack debates. They sit at three different layers and the choice is rarely either or.
AI and Automation
How to build an MCP server for an existing Next.js SaaS
A pragmatic guide to shipping an MCP server on a running Next.js 16 SaaS: packages, routes, auth, session state, and the failure modes you will hit.
Infrastructure and SEO
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.
Business and Scale
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.
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".
Product Design
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.
AI and Automation
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.
Infrastructure and SEO
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.
Business and Scale
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.
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.
Product Design
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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