Skip to content
Chandler Nguyen

Vol. 04 · Issue 28 · Building in Public

I spent 18 years in advertising.Then I learned to code.

I turn media judgment, client pressure, and messy briefs into AI products and operating systems — while writing down what actually works.

2008.Established18+ years in advertising.
519.ArchiveEssays written across the archive.
04.ShippedProducts live as of May 2026.

Thesis

Most teams do not need another tool. They need a clearer operating model: what to automate, what to protect, what to deepen, what to change. Everything I write, build, and teach starts there.

A working principle, since 2024.

The Practice

Products.

Recent Notes

Practical notes on AI and building.

A working notebook, not a polished manual. Read it as drafts that change as the practice changes.

No. 01AI

How I Write System Prompts That Actually Get Enforced (After My AI Hosts Said 'Trời ơi' 13 Times)

No. 02AI

The One Question That Killed an Entire Curriculum Architecture in a Week

No. 03AI

Offline Mode for My AI App Didn't Need AI. It Needed Boring.

No. 04AI

Native Isn't a Skin: Rebuilding DIALØGUE's iOS App

No. 05AI

I Rebuilt My Site With Two AI Models: Opus for Design, Codex for Execution