Self-paced2 courses
Learn how real systems are built
Short lessons, worked examples, no fluff. Every page is rendered at build time — nothing here talks to an API in the browser.
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Frequently asked questions
Do I need prior experience?
No. Each course starts from first principles and builds up to the tradeoffs you hit in production.
How long does a course take?
A few hours of reading across a dozen short lessons, plus the worked examples if you follow along.
Is my progress saved?
Progress is stored in your browser's local storage. There are no accounts, so it does not follow you to another device.
Can I access the material after I finish?
Yes. Every lesson is a public static page — nothing is gated or expires.