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AI Hero Open-Sources Its AI Engineering Course Code and Exercises

July 11, 2026 at 03:20 EDT

Software Dev & Coding
Open Source
Education

AI Hero, an AI education project led by Total TypeScript author Matt Pocock, has published ai-hero-dev/ai-hero on GitHub, a repository bundling open-source code examples and exercises for learning AI engineering. Centered on TypeScript, it collects runnable sample code, exercises, and article-based material in a single repository so developers can learn the fundamentals of building AI applications hands-on.

July 2026 · AI Hero

From Zero to a Serious AI Engineer — in TypeScript

Matt Pocock, creator of Total TypeScript, opens ai-hero: an open-source repo of runnable examples and exercises for building real AI applications — pairing free code with a fundamentals-first philosophy.

88%

of the codebase is TypeScript

~1.6k

GitHub stars (as of July 2026)

297

forks

What's in the repository

examples/

Self-contained runnable code samples

exercises/

Hands-on practice like "tracer bullets"

articles/

Read-and-code-along material

courses/

Structured tracks incl. AI SDK v6

Runs on Node.js (LTS) + pnpm, with an OpenAI / Anthropic API key in .env. Local-model support is planned.

Why fundamentals matter more, not less

As coding agents like Claude Code generate code fast, a low-quality codebase feeds back into worse agent performance — a vicious cycle. The fix is basics.

Requirements gathering

→

Types & tests

→

Architecture design

The draw

Pocock's earlier content is praised as "practical," "fundamentals-first," and "focused on code quality." The code portion here is free, open source.

The debate

AI engineering material often faces questions over "superficial" content and the value of paid tiers. Setup snags: API keys and the pnpm/Node environment.

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