Not homework · only if you're curious ✨

🌟 Learn More

The best free places to go deeper into what we learn in class. All beginner-friendly, all in simple English.

📺 Watch

YouTube · freeCodeCamp

APIs for Beginners

The waiter, the kitchen, the whole restaurant — everything from lesson 1, explained slowly.

youtube.com ↗ YouTube · Andrej Karpathy

Intro to Large Language Models

How LLMs really work, from one of the people who built them. Watch after lesson 2.

youtube.com ↗ YouTube · freeCodeCamp

Learn JavaScript — Full Course

Feeling rusty? This giant free course refreshes all the JS we lean on this year.

youtube.com ↗ YouTube · Fireship

…in 100 Seconds

MongoDB, APIs, TypeScript — each explained in 100 fun seconds. Search "Fireship 100 seconds" + any word from our glossary.

youtube.com/@Fireship ↗

🎓 Free courses

freeCodeCamp

JavaScript Algorithms & Data Structures

A full free certificate, in your browser, at your own pace. The JS muscles behind our agents.

freecodecamp.org/learn ↗ Frontend Masters

Free Web Dev Bootcamp

HTML, CSS and JS from zero — the same site the pros pay for, this part is free.

frontendmasters.com/bootcamp ↗ MongoDB University

Intro to MongoDB

Short official lessons on collections, documents and queries — lesson 1, but deeper.

learn.mongodb.com ↗ DeepLearning.AI

Short courses on AI agents

Andrew Ng's short free courses — agents, prompting, RAG. For when you want the next level.

deeplearning.ai/courses ↗

📖 Read & practice on W3Schools

Try-it-yourself boxes for everything we touch in class:

W3Schools

JavaScript Tutorial

The language of our whole year. Every page has a Try It editor.

w3schools.com/js ↗ W3Schools

JSON Intro

The format APIs and Mongo documents speak. Lesson 1 material.

w3schools.com/js/js_json_intro ↗ W3Schools

MongoDB Tutorial

Collections, documents, find and insert — practice our database moves.

w3schools.com/mongodb ↗ W3Schools

TypeScript Intro

Our Studio code uses a light touch of TypeScript — here's what those types mean.

w3schools.com/typescript ↗

🛠️ Our tools' own guides

docs

opencode

Our coding agent — install, commands, tips.

opencode.ai/docs ↗ docs

LangChain JS

createAgent, tools, multi-agent — the library we build with.

js.langchain.com ↗ docs

Zod

How we describe data shapes so agents understand tools.

zod.dev ↗ GitHub

Nir's tutorial

Our reference project — the agent lessons we follow in class.

github.com/nirkaufman ↗ guide

Prompting Guide

How pros write prompts. RTOC's big sister.

promptingguide.ai ↗ playground

Tokenizer

Paste text, see the tokens. Lesson 2's "aha!" moment.

platform.openai.com/tokenizer ↗ playground

PokeAPI

A real API you can open in the browser. GET pikachu!

pokeapi.co ↗ map

AI Engineering skills map

Andrew Ng's map of AI skills — see how far you already are.

x.com/AndrewYNg ↗

💜 How to use this page

Pick one thing that made you curious this week. Spend 20 minutes on it. Tell us about it at "Explain to me". That's it — curiosity over homework, always.