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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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Infrastructure and SEO
The 7 schema markup types every blog needs in 2026
Article, BreadcrumbList, Organization, Person, WebSite, FAQPage, HowTo. Which schema types still earn rich results in 2026, and which are pure AI citation fuel.
Business and Scale
Stripe Billing vs RevenueCat: when each one wins in 2026
Side-by-side on web SaaS billing: subscriptions, proration, entitlements, fees. The decision broken down by stack and revenue stage.
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.
Product Design
How to govern a design system across 10+ consumer projects
A practical playbook for governing a design system across many consumer projects: contribution model, versioning, codemods, and adoption tracking.
AI and Automation
Claude Code workflow patterns we use to ship production code daily
Seven Claude Code workflow patterns we run daily to ship production code: plan mode, CLAUDE.md, hooks, subagents, parallel sessions, slash commands, MCP.
Infrastructure and SEO
llms.txt: what it is, what to put in it, and if you need one
llms.txt is a markdown index that hands LLMs a curated map of your site. Here is what to put in it and whether it actually moves AI citations.
Business and Scale
Usage-based pricing for SaaS: the metering and billing patterns that work
How to ship usage-based billing in a SaaS without breaking trust: meter design, idempotency, hybrid plans, and the platform choice.
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.
Product Design
10 design system mistakes that wreck consistency at scale
Buttons multiply, tokens drift, components fork. The 10 design system mistakes that quietly turn a product into a parts bin, and the fixes.
AI and Automation
Build vs buy MCP server: when to write your own and when to buy
Self-hosting an MCP server costs $50k to $150k per integration per year. Buying solves 80% of cases, building wins the rest. Here is how to decide.
Infrastructure and SEO
How to write the first 200 tokens so AI engines cite your article
The first 30% of an article drives 44% of AI citations. A practical guide to an opener ChatGPT, Claude and Perplexity quote cleanly.
Business and Scale
One team, one invoice: why founders stop stacking SaaS vendors
Most early-stage SaaS teams pay 20-30% more than they should because work lives across 10+ vendors. Here is the case for one team and one invoice.
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For builders
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For buyers
Pieces for founders and teams picking a partner.