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Each guide runs the gamut from beginner to advanced. Whether you're new to a topic or have been practicing it for years, read through our guides and you'll find something new.

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All Topics


Classical compiler construction (coming soon)

Learn the basics of programming languages and compilers, and equip yourself to make DSLs and toy languages.

Baby's first language theory (coming soon)

State machines, abstract datatypes, type theory...


Stuffing a cat through internet tubes in 3 easy steps

Learn about the web stack all the way from HTTP down to Ethernet.

Internet infrastructure (coming soon)

How does the internet actually work? How does your ISP know where to send your data? What happens to the internet if physical communication breaks down?


Representing dates and times

Learn the fundamentals of how dates, times, and timezones work, so you can avoid many common mistakes.

Synchronizing clocks with NTP

Learn how to synchronize computer clocks using the Network Time Protocol.