Frontend systems
React, TypeScript, architecture, migrations, and the tradeoffs behind durable interfaces.
Technical review journal · San Francisco
Complex systems deserve clear thinking.
Field notes on software engineering, frontend performance, AI tooling, and the tradeoffs that shape resilient systems.
Areas of focus
AI engineering
How coding agents change implementation, review, cost, and the way teams work.
Useful technology
Cloudflare, self-hosting, Home Assistant, and tools tested outside a demo environment.
Latest field notes
Browse all 88 postsAI Pricing Is Becoming UX
GPT-5.6 turns capability into a price ladder, while Codex Spark turns speed into a separate button. AI pricing is becoming part of the interface.
TanStack Table v9 Trades Monoliths for Explicit Feature Trees
Upgrading TanStack Table v8 to v9 cuts rendering time by 28% on 5,000-row tables. The real migration effort lives in TypeScript generic boundaries.
React Router v8 Learned to Make Upgrades Boring
React Router v8 keeps the framework-mode API familiar and moves v7's future flags into defaults. That restraint matters after an expensive v6-to-v7 migration.
Claude’s Guardrails End at Claude
Closed-model guardrails remain tied to the provider, even as comparable open weights spread. Public safety needs controls that survive that reality.
AI-Generated Code Review: What Reviewers Should Still Block
Models make awkward code cheaper to replace. Review should block future risk and leave private ideas of neat to automated conventions.
The Best Coding Agent Is the One You Can Keep Using
Grok Build produces useful patches, but its weekly limit changes how I use it. The harness and quota now matter more than the model.