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Free public beta until December 4, 2026: every course is open, no card needed. After that, the first chapter of each course stays free and full access is a one-time $39 ($19 for up to 100 founding members chosen for helpful feedback). Your progress is kept. How the beta works
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Programming

Modern languages, written the way they're written today.

XIII — Programming

Python

Modern Python (3.14) from your very first program to tested, packaged, real-world software.

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C++

Modern, portable C++ (C++17/20/23) learned by programming, plus the whole toolchain underneath it, on Windows, macOS, and Linux.

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C#

Modern C# 14 on .NET 10, from your first line of code to tested, packaged, professional software, with the tools underneath never hidden.

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Java

Modern Java 25 LTS from your first line of code to tested, database-backed applications, with the JDK, build tools, and JVM underneath never hidden.

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Rust

Modern Rust (1.98, edition 2024) from your first program to fast, safe, production services, with ownership taught as the core idea it is.

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Assembly and Computer Architecture

How a modern computer really runs your program, from a C++ function to the bytes, registers, caches and cores underneath, on x86-64, ARM64 and RISC-V.

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Embedded Systems and the Internet of Things

Arduino and ESP32 from a standing start -- the electricity a programmer needs, real toolchains, and firmware on real boards.

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Connected Devices and the Internet of Things

Networking, cloud, security, and edge AI for the devices you built in Embedded Systems -- MQTT and HTTP, back ends, safe updates, and small machine learning on the chip.

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Programming dependency map

Programming dependency map

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Solid boxes are published courses (click to open); dashed boxes are planned. A dashed grey box outside the border is a prerequisite from another subject -- click it to jump to that subject's page. An arrow points from a prerequisite up into the course that builds on it.