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Quick Start Guide

Welcome to the Happy Coder quick start guide! This guide will help you get up and running with Claude Code in your pocket.

Installation

Download Mobile App

Install on Your Computer

npm install -g happy-coder

Happy requires Node.js 18 or later (released April 19, 2022) because we use these features:

  • Top-level await (Node.js 14.8+)
  • Better ES module support (Node.js 16+)
  • Stable fetch API (Node.js 18+)
  • Dependencies: Some of the dependencies like @anthropic-ai/claude-code and packages like chalk v5+ require Node.js 18+

Scan the QR code with your mobile app

happy --auth # Shows QR code
Screenshot of terminal showing the QR code plus secret code for manual entry

First Steps

Once you’ve connected your mobile app to your computer:

  1. Start a new conversation
  2. Begin coding with Claude!
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