The Dev Handbook

Free, open-source developer courses — React, Next.js, TypeScript, Go, Python & more.

Maintained by Stanza — Learn coding faster right in your IDE, Slack, emails and the web.

Pedagogical Structure

Every lesson follows a consistent pedagogical structure designed for progressive learning:

#	Section	Purpose
1	Introduction	Sets the context — what you will learn and why it matters
2	Key Concepts	Core definitions and mental models to build on
3	Real World Context	Practical scenarios showing where and how this applies
4	Deep Dive	Detailed technical explanation with annotated code examples
5	Common Pitfalls	Mistakes learners frequently make and how to avoid them
6	Best Practices	Guidelines and conventions used in production codebases
7	Summary	Key takeaways to reinforce retention

Each lesson flows from conceptual understanding to practical application to edge cases, so we recommend following them in order.

Courses

⚛️ React

• ♿ React Accessibility (a11y) — 18 lessons
• ⚙️ React Advanced APIs — 14 lessons
• ✨ React Animation & Motion — 16 lessons
• 🧩 React Components & Patterns — 12 lessons
• 🪝 Building Custom Hooks — 15 lessons
• 📡 React Data Fetching Patterns — 18 lessons
• 📝 React Form Mastery — 19 lessons
• ⚓ React Hooks Deep Dive — 19 lessons
• ⚛️ React Intermediate — 58 lessons
• ⚛️ React 19 & Patterns — 21 lessons
• ⚡ React Performance Deep Dive — 15 lessons
• 🏗️ React Project Architecture — 13 lessons
• ⚡ React Server Components — 13 lessons
• 🏛️ React State Architecture — 16 lessons
• 🧪 React Testing Strategies — 18 lessons
• 📘 React TypeScript Mastery — 17 lessons
• ⚛️ React Basics — 24 lessons

▲ Next.js

• 🔌 Next.js API Routes & Patterns — 16 lessons
• 🌍 Next.js Internationalization — 20 lessons
• 🚀 Next.js Performance & Optimization — 20 lessons
• 🔐 Next.js Proxy & Authentication — 20 lessons
• 🧪 Next.js Testing Strategies — 20 lessons
• ▲ Next.js Full-Stack — 24 lessons

🔷 TypeScript

• 🧙‍♂️ TypeScript Type System Mastery — 18 lessons
• 🏛️ TypeScript Architecture & Patterns — 18 lessons
• 🏭 TypeScript in Production — 18 lessons
• 🔷 TypeScript Essentials — 21 lessons

🟨 JavaScript

• ⏳ Async JavaScript: Promises & Patterns — 24 lessons
• 📐 JavaScript Design Patterns — 20 lessons
• λ Functional JavaScript Architecture — 20 lessons
• ⚡ JavaScript Under the Hood — 20 lessons
• 🟨 JavaScript Core Mastery — 40 lessons

💚 Vue

• ✨ Vue Animations & Transitions — 7 lessons
• 🧩 Vue Component Architecture — 11 lessons
• 🧩 Vue Composition API & Composables — 10 lessons
• 💚 Vue Foundations — 24 lessons
• 🍍 State Management with Pinia — 10 lessons
• ⚡ Vue Reactivity Mastery — 12 lessons
• 🧭 Vue Router: Complete Navigation Guide — 11 lessons
• 🌐 Vue Server-Side Rendering & Nuxt — 9 lessons
• 🧪 Vue Testing Strategies — 7 lessons
• 📘 TypeScript with Vue — 8 lessons

🔥 Svelte

• 🔥 Svelte 5: The Complete Guide — 20 lessons
• 🏢 Enterprise Svelte: Testing & Architecture — 15 lessons
• 👆 Event Handling & User Interaction — 17 lessons
• 📦 Moving to Svelte 5 — 15 lessons
• 🎭 Motion & Transitions — 14 lessons
• 🏎️ Under the Hood & Performance — 15 lessons
• 🔮 Mastering Runes: The New Reactivity — 15 lessons
• ✂️ Component Composition with Snippets — 13 lessons
• 🏛️ Scalable State Management — 15 lessons
• 📦 SvelteKit 2 & Svelte 5: The Perfect Duo — 15 lessons

🐍 Python

• 🏛️ Python Architecture: Patterns & Type System — 20 lessons
• ⚡ Python Concurrency: Asyncio & Free-Threading — 24 lessons
• 🔮 Python Metaprogramming & Introspection — 19 lessons
• 🏎️ Python Performance: JIT & Internals — 24 lessons
• 🐍 Python Fundamentals: Modern 3.14 Edition — 28 lessons

🎸 Django

• ⚙️ Django Admin Mastery — 22 lessons
• 🔐 Django Authentication & Authorization — 28 lessons
• 🚀 Django Deployment & Production — 20 lessons
• 📋 Django Forms & Validation — 34 lessons
• 🎸 Django Foundations — 31 lessons
• 🗃️ Django ORM Mastery — 27 lessons
• ⚡ Django Performance & Optimization — 16 lessons
• 🔌 Django REST API Development — 32 lessons
• 🔒 Django Security Best Practices — 24 lessons
• 🧪 Django Testing & Quality Assurance — 19 lessons

🐹 Go

• 🏛️ Go Architecture & Design — 20 lessons
• 🔄 Go Concurrency Patterns — 20 lessons
• 🚀 High-Performance Go — 20 lessons
• 📚 Go Standard Library Mastery — 20 lessons
• 🌐 Go for Web & Microservices — 20 lessons
• 🐹 Go Programming — 20 lessons

🦀 Rust

• ⚡ Asynchronous Rust — 15 lessons
• 🧵 Concurrent Rust — 20 lessons
• 🔌 Rust for Embedded Systems — 10 lessons
• λ Functional Rust — 10 lessons
• 🔮 Rust Metaprogramming — 10 lessons
• 🧠 Rust Ownership & Memory Model — 16 lessons
• 🚀 Rust Performance — 15 lessons
• 🎭 Advanced Traits & Generics — 20 lessons
• ⚠️ Unsafe Rust & FFI — 10 lessons
• 🦀 Rust Essentials — 19 lessons

💎 Ruby

• 🧵 Concurrency in Modern Ruby — 16 lessons
• 🪄 Ruby Metaprogramming Workshop — 20 lessons
• ⚙️ Ruby Internals & Performance — 16 lessons
• 💎 Ruby Language Foundations — 28 lessons

🐘 PHP

• 🌐 RESTful API Development with PHP — 24 lessons
• ⚡ Asynchronous PHP — 18 lessons
• 🗄️ PHP & Relational Databases — 18 lessons
• 🏛️ Domain-Driven Design with PHP — 21 lessons
• 🐘 PHP Essentials — 23 lessons
• 🚀 Modern PHP 8.x: Latest Language Features — 21 lessons
• 🏛️ Object-Oriented PHP Mastery — 20 lessons
• ⚡ PHP Performance Optimization — 18 lessons
• 🔒 PHP Security Engineering — 21 lessons
• 🧪 PHP Testing & Quality Assurance — 26 lessons

🔺 Laravel

• 🔌 Laravel API Development — 8 lessons
• 🔐 Laravel Authentication & Authorization — 12 lessons
• 📄 Laravel Blade Templating — 12 lessons
• 🗄️ Laravel Eloquent ORM — 16 lessons
• 🔺 Laravel Foundations — 15 lessons
• ⚡ Laravel Background Processing — 12 lessons
• 🛤️ Laravel Routing & Controllers — 9 lessons
• 🧪 Laravel Testing Mastery — 9 lessons

🐈 NestJS

• 🦁 NestJS Essentials — 21 lessons
• 🎓 NestJS Fundamentals — 20 lessons
• 🚀 NestJS High Performance — 20 lessons
• 🛡️ NestJS Security — 20 lessons
• 🛠️ NestJS Techniques — 20 lessons

🔴 Redis

• ⚡ High-Performance Caching Strategies — 18 lessons
• 🏗️ Clustering and High Availability Architecture — 18 lessons
• 🔴 In-Memory Data Store Fundamentals — 20 lessons
• 📡 Real-Time Messaging and Event Streaming — 18 lessons
• 📊 Probabilistic Data Structures and Analytics — 18 lessons
• 📜 Scripting, Transactions, and Programmability — 18 lessons

🐘 PostgreSQL

• 🐘 PostgreSQL Fundamentals — 19 lessons
• 📋 PostgreSQL JSON & Document Processing — 16 lessons
• ⚡ PostgreSQL Performance Engineering — 14 lessons
• ⚙️ Server-Side Programming with PL/pgSQL — 15 lessons
• 🔄 High Availability & Replication in PostgreSQL — 17 lessons
• 🔐 PostgreSQL Security & Access Control — 16 lessons

Ruby-on-rails

• 📡 Real-Time Rails with Action Cable — 15 lessons
• 🗃️ Active Record Mastery — 24 lessons
• 🔌 Building RESTful APIs with Rails — 18 lessons
• ⚡ Background Processing in Rails — 24 lessons
• 🚀 Rails Deployment and DevOps — 16 lessons
• 🛤️ Rails Foundations — 28 lessons
• ⚡ Modern Rails Frontend with Hotwire — 18 lessons
• 🏎️ Rails Performance Optimization — 18 lessons
• 🔒 Rails Security Hardening — 18 lessons
• 🧪 Rails Testing Excellence — 19 lessons

Why Open Source?

We believe high-quality learning content should be accessible to everyone. These courses cover the theory, code examples, and best practices you need to level up as a developer.

Want the Full Experience?

Complete all these courses on the open Stanza app:

Web interface

Embedded in your IDE panel (VsCode/Cursor extension)

Use the Slack app

More details on Stanza's website https://stanza.dev

• Interactive challenges validated in real-time
• Progress tracking with Mana points and streaks
• Embed courses & challenges directly in VS Code / Cursor

→ Try Stanza for free

Contributing

Found a typo? Want to improve an explanation? PRs are welcome!

• Fix typos and improve clarity
• Suggest new topics via Issues
• Keep code examples up to date

Please read CONTRIBUTING.md before submitting.

License

Content is licensed under CC BY-SA 4.0. Code examples are MIT.

In plain English:

• Read, share, translate, improve — yes, always
• Use code snippets in your projects — yes, no restrictions (MIT)
• Fork and sell as a paid course — no
• Credit required — yes, link back to this repo or stanza.dev

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