Pro Tracks¶
Deep, very advanced material built from real production work — for engineers preparing for senior interviews or building systems for real users. Each track is a downloadable pack with diagrams, full code and worked solutions.
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Architecture
8 production AI architectures — multi-tenant RAG, LLM gateways, agent platforms, voice AI.
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System Design
10 interview problems — design ChatGPT, a vector DB, a rate limiter, a news feed and more.
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DSA Questions
Coding-interview patterns from arrays to segment trees, with commented Python solutions.
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Cheat Sheets
9 printable one-page references — Python, LangChain, RAG, prompts, SQL, DSA and more.
Free notes vs Pro Tracks¶
| Free notes | Pro Tracks | |
|---|---|---|
| Depth | Concepts and one reference design | Several production designs per topic, with scale numbers |
| Code | Focused examples | Complete worked solutions in Python |
| Interview prep | Key questions per note | Full problem walk-throughs with follow-ups |
| Cheat sheets | — | 9 printable one-page references |
| Format | Web pages | Web + downloadable PDF, free updates |
Get early access to all four tracks — launch price announced soon, with an early-bird discount for the waitlist.