three tracks · one idea

Learn it by seeing it, then building it.

For software engineers moving into AI/ML, Claude-based agents, or cloud security — every concept is something you can click, drag and break.

No hand-waving, no walls of text. Pick where you're headed. 100% free, works offline, no trackers.

live demo · self-attention Open the full lesson →

Q·Kᵀ → softmax → ·V, running live on five real 2-D toy vectors — the same three matrices every transformer runs at every layer.

▾ choose your track
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Engineer path

AI/ML Engineer Roadmap

Zero → senior AI/ML engineer across 10 phases: Python, the math (as pictures), classic ML, deep learning, transformers, LLMs & RAG, MLOps, and agentic systems — design, train, deploy, operate.

244 explainers12 boss challenges11 phases + 4 modules34 quiz setsThe Model Foundry 🤖
Start here → or see the roadmap hub
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Certification prep

Claude Certified Architect

Prep for Anthropic's CCAR-F exam: the agent loop, tool & MCP design, Claude Code workflows, prompt engineering and context management — all 5 domains as playable explainers.

26 explainers5 exam domains50 quiz QsThe Agent Hangar 🚀
Enter the hangar →
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Career switch

Threat Modeling for Cloud

From developer to security contributor: the four questions, STRIDE, IAM and cloud controls on AWS, Azure and private cloud — mapped to CCSK v5 and SCS-C03, with a threat-modeling Studio and graded cases.

50 lessons8 graded casesCCSK v5 + SCS-C03The Threat Model Studio 🛡️
Start with M0 →
6 of 244 explainers
Decision trees explainer panel Decision trees Backpropagation explainer panel Backpropagation Inside a CNN explainer panel Inside a CNN RoPE and KV cache explainer panel RoPE & KV cache RAG pipeline explainer panel RAG pipeline Attention Is All You Need illustrated paper panel Attention Is All You Need

New here? The AI/ML roadmap assumes no prior ML. The Architect track assumes you already build with LLMs. Threat Modeling for Cloud assumes no security background, just working dev experience.

Your place is saved in this browser — The Path picks up where you left off.

AI/ML roadmap Architect → The Hangar Threat Modeling for Cloud 📖 Illustrated Books 📱 Get the app GitHub ↗

The whole core is free forever. Optional extras — uploaded books and an AI study tutor — help it pay for itself without ads or trackers.