Node.js Environment Installation Guide

Claude Code, Gemini CLI, Codex, and related tools all depend on the Node.js runtime. Please complete this step first.

Windows

Method 1: Official download (recommended)
Go to the Node.js official website to download the LTS version, then double-click the installer and follow the prompts to complete installation.
After downloading, keep clicking Next until installation is complete.
Method 2: Use Chocolatey
```
choco install nodejs-lts
```
Method 3: Use Scoop
```
scoop install nodejs-lts
```

Method 1: Use Homebrew (recommended)
```
brew install node
```
Method 2: Official download
Go to the Node.js official website to 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

If both commands output version numbers, the installation was successful.

If dependency installation is slow or times out, run the following command to switch to a domestic mirror:

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

Verify whether the switch succeeded:

npm config get registry

If the output is https://registry.npmmirror.com, it has taken effect.