Node.js Installation Guide

Claude Code, Gemini CLI, Codex and other tools require Node.js. Please complete this step first.

Windows

Option 1: Official Download (Recommended)
Go to Node.js website and download the LTS version. Run the installer and follow the prompts.
Option 2: Using Chocolatey
```
choco install nodejs-lts
```
Option 3: Using Scoop
```
scoop install nodejs-lts
```

Option 1: Using Homebrew (Recommended)
```
brew install node
```
Option 2: Official Download
Go to Node.js website and download the macOS installer.

Ubuntu / Debian

curl -fsSL https://deb.nodesource.com/setup_lts.x | sudo -E bash -
sudo apt-get install -y nodejs

CentOS / RHEL

curl -fsSL https://rpm.nodesource.com/setup_lts.x | sudo bash -
sudo yum install -y nodejs

node --version
npm --version

Both commands should output a version number.

If installing packages is slow or times out, switch to a domestic mirror:

npm config set registry https://registry.npmmirror.com

Verify:

npm config get registry

Output should be https://registry.npmmirror.com.