> Markdown version of [/magazine/743-dev-digest-229-a-claude-code-course-agent-credit-cards-gta-in-js](https://www.wearedevelopers.com/magazine/743-dev-digest-229-a-claude-code-course-agent-credit-cards-gta-in-js). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

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# Dev Digest 229: A Claude Code Course, Agent Credit Cards & GTA in JS

**By:** [Daniel Cranney](https://www.wearedevelopers.com/@daniel-cranney)

**Published:** July 20, 2026

## Inside last week’s [Dev Digest 229](https://newsletter.wearedevelopers.com/229).

https://www.youtube.com/embed/zLEUxshJb7Y

🎓 A Free Claude Code Course  
🎭 Claude’s Multiple Personalities  
💰 Cutting Token Use by 94%  
🌐 Why AI Browsers Are a Bad Idea  
🎮 WebGL Without a GPU  
💳 Disposable Credit Cards and Linux for Agents  
🚗 Grand Theft Auto in JavaScript

🗞️ Join over 200,000 developers already subscribed to the Dev Digest to get your weekly round-up of tech news, tips and tricks, jobs, events and more, delivered to your inbox. [Subscribe here](https://wearedevelopers.com/devdigest).



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