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// Learning paths · updated quarterly

Structured paths instead of scattered tutorials. Start where you actually are, finish with something running in production. Every guide is written by someone who has shipped the thing it describes — and rewritten when the thing changes.

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// 01 · Pick your track

Three paths, one destination

Tick chapters as you go — each path tracks its own progress. Start anywhere; the paths are designed to be taken in order but each chapter stands alone.

// 02 · Start with this one

Build a production RAG system in one afternoon

Chunking that does not destroy meaning, embeddings that survive a re-index, a relevance threshold that stops the model answering from nothing, and the eval harness to prove it works. Copy-paste code, no framework lock-in.

9 chapters 74 min Updated Aug 2026 Python + TypeScript

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// 03 · Full library

Three paths, one destination

Build a production RAG system in one afternoon

Every guide, by level

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