I kept noticing that most "learn to code" content is tutorials you copy-paste, so I never had to actually understand why anything worked. I built this to flip that: each lesson gives you a real spec (e.g. implement the Redis SET/GET protocol) and you write the code yourself, then it actually runs against tests. Right now there are 80+ of these "build X from scratch" courses — Redis, a database, Git, a compiler, a container runtime, a raft KV store, etc. — across Python, Go, Rust, C, C++, and others. Would love feedback, especially on where the early lessons feel too hand-holdy or too sparse.
Looked at the 'build your own os kernel' course and it doesn't appear to be written as a course by someone with experience in teaching that. A normal course also introduces and builds on concepts.
The amazing thing about modern vibe coding tools, is you can make your own adventure course.
I can say to codex "I know X, using X can you make a simple version of Y with Z features so I can understand how it works. Use this github code as inspiration"
Hey everyone, we've added GitHub integration. You can now use your own IDE, code locally, and push to a public GitHub repo we'll grade it and give you a score for each lesson. We've also added free certification: when you complete a course, you'll receive a free certificate that anyone can verify.
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Looked at the 'build your own os kernel' course and it doesn't appear to be written as a course by someone with experience in teaching that. A normal course also introduces and builds on concepts.
This appears to be generic info laid into topics.
https://shipthatcode.com/courses/build-os-kernel/lessons/wha...
I can say to codex "I know X, using X can you make a simple version of Y with Z features so I can understand how it works. Use this github code as inspiration"
Nice site tho