Adam HultmanAI-assisted development at Kopperfield
How a small team at Kopperfield turns AI-assisted coding into trusted, shippable software without lowering the bar.
Writing
Working notes.
Notes on React and Next.js, AI-assisted development, performance, and software architecture. I write about the tools and engineering decisions behind the work. Subscribe via RSS ↗
AI-assisted development
Coding agents, multi-agent workflows, and reviewing AI-assisted changes before shipping them.
Building a multi-agent AI team: from solo agent to coordinated crew
Turning a solo coding agent into a small, coordinated AI team in your terminal.
Architecting a real-world LLM agent workflow: beyond chatbots
How to design LLM agents with structured reasoning, tool use, state, and orchestration for work that goes beyond simple chat.
Getting started with AI-driven development: tools and techniques
A beginner-friendly look at using AI tools to write, review, debug, and ship software more effectively.
React and Next.js
Component patterns, TypeScript, real-time data with WebSockets, and deploying React applications.
React: compound components vs render props vs custom hooks
A practical guide to choosing the right React abstraction for reusable, flexible components.
Building real-time applications with React and WebSockets
How to structure React apps around live data, persistent connections, and real-time user interactions.
Top mistakes to avoid when deploying react apps to production
Common production issues in React apps, and how to avoid them before they reach users.
How to build a scalable React app with Next.js and TypeScript
A practical foundation for building maintainable, type-safe React apps with Next.js and TypeScript.
Performance, architecture, and security
Frontend performance beyond Lighthouse scores, full-stack architecture, and safer software.
Scaling full-stack applications: patterns I actually use
Practical patterns for scaling full-stack apps across architecture, performance, security, and team workflows.
Optimizing frontend performance: beyond Lighthouse scores
How to improve real user performance in React apps through bundle analysis, hydration fixes, code-splitting, and runtime profiling.
Security is fun: 10 cybersecurity practices every developer should know
A developer-focused checklist for building safer applications, from authentication to dependency management.