New here? Start with one thing.

Three tracks — build AI agents, harden your Linux machine, or do DeFi without getting drained. Every one starts free. Go deep only when you want to.

The path

Step 1

Learn it free

Read the how-to and the glossary. No signup needed.

Step 2

Do it once

Run the commands, build the loop, verify the contract yourself.

Step 3

Go deep

Get the full step-by-step guide when you want the whole path.

Pick your track

Each card starts free and ends at the guide that covers the whole subject.

AI Agents

Build your first agent

From a blank file to a working loop that calls tools and remembers things.

Linux

Harden your machine

SSH, DNS, firewall, full-disk encryption — the hardening that actually stops attacks.

DeFi

Stop getting drained

Wallets, approvals, and the five attacks that actually take people's funds.

Markets

Read the game

Price, flow, and structure — instead of chasing pumps and headlines.

Not sure yet? Take the free guide.

15 minutes, from a blank file to a working AI agent loop — with the runnable code.

More from Rich Chris

Reference and tools, free to use.

Glossary

61 AI, Linux, and DeFi terms in plain English.

How-To Guides

13 command pages, end to end.

Schema Validator

Check a tool schema in the browser. Nothing uploaded.