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Notes on building products

Practical writing on architecture, design systems, and delivering durable outcomes.

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Tools & Workflow 4 min read

Why Should I Use AI?

A candid look at who actually benefits from AI today, why “shadow AI” is inevitable inside big companies, and why incentives and education—not the tech itself—are the real bottlenecks.

LLM AI Productivity
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Tools & Workflow 5 min read

Harness Engineering: The Programmatic Way to Reign in SNR

SNR explains why LLM quality drops — Harness Engineering is how you fix it. A look at programmatic workflows, multi-agent pipelines, and verifiable output that keeps AI-assisted development firmly in your control.

LLM AI Harness Engineering Multi-Agent
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Tools & Workflow 5 min read

Mastering Signal-to-Noise Ratio (SNR) to Prevent Context Rot in AI Development

Why LLM output quality varies—and how the signal-to-noise ratio mental model helps you prevent context rot and curate context for better AI-assisted development.

LLM AI Context Prompt Engineering
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Tools & Workflow 6 min read

Helping an LLM Think Outside the Box

How to get elegant solutions from LLMs when the problem demands thinking outside the box—from a real Shopify accordion challenge to Git Worktrees, multi-agent experiments, and when to take over.

LLM Shopify Workflow
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Tools & Workflow 13 min read

Becoming a Programmer in the AI Age: The LLM Assisted Programmer

A roadmap for thriving as an LLM-assisted programmer: master fundamentals, understand the caveats of LLMs, and build incrementally while staying in control.

LLM Career Programming
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Design 6 min read

Creating Modern CSS Design Systems with Custom Properties

A practical approach to design tokens, naming, and CSS architecture — with patterns that keep portfolio sites fast, consistent, and easy to maintain.

CSS Design Tokens Frontend
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Development 8 min read

Building Scalable E-commerce Platforms: Lessons from Jou Sun

Key lessons from building an end-to-end grocery delivery platform: supply chain constraints, B2B tooling, and the architecture tradeoffs that kept the product resilient.

E-commerce PHP Architecture
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