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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

Courses

Pick a subject to see its courses and how they build on each other. Courses already published are clickable; the rest of the curriculum plan is shown ahead of time so the dependencies are visible before they're built.

Mathematics

From algebra through AI systems.

26 of 30 courses published

Language & Writing

How sentences, paragraphs, and arguments are built.

2 of 3 courses published

Programming

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

8 of 8 courses published