Free, structured learning paths
built by an engineer who ships.
No fluff courses. No upsells. The best material for every one of these topics is already free on the internet — from creators who chose to share it. The missing piece is structure. Each path tells you what to watch, in what order, what to build after each level, what to drill on a practice sheet, where to practice on real platforms, and what to skip. Every path ends in original capstone assignments you won't find anywhere else.
Mastery Library →
The best books, docs, courses, channels & GitHub repos for 24 engineering domains. Searchable. Free.
Career OS →
The $15/hr→$1M roadmap, freelance & SaaS blueprints, and the daily systems of top engineers.
My Learning →
Track progress across every course, keep a build log, and save resources. Sign-in optional.
Pick a path
Each course is a complete roadmap to one real outcome — not a topic dump.
Follow levels in order
Every level is sequenced: watch, read, then build. Skip rules tell you when to jump ahead.
Build the projects
That's where the learning happens. Each build ships with acceptance criteria — you'll know when it's done.
Most paid courses repackage free content.
The best material for every one of these topics is already free — freeCodeCamp, MDN, official docs, Karpathy, Anthropic's own guides. The problem was never access; it's structure. This academy solves structure: what to watch, in what order, what to build after each level, and what to skip. I use these exact resources myself — the AI engineering path is the one behind the 24-agent system that develops this site's own codebase.