Lailix

Claude Code Setup

Install and configure Claude Code on your computer.

💡Why Claude Code?

As of January 2026, Claude Code is the most capable AI coding agent for complex, multi-phase projects. Your PRD will work with other tools like Lovable, Replit Agent, or Cursor, but we recommend Claude Code for the best results.

System Requirements

macOS

  • • macOS 12.0+
  • • Intel or Apple Silicon
  • • 4GB RAM minimum

Windows

  • • Windows 10/11
  • • 64-bit processor
  • • 4GB RAM minimum

Linux

  • • Ubuntu 20.04+ or equivalent
  • • 64-bit processor
  • • 4GB RAM minimum

Installation

1

Install Node.js

Claude Code requires Node.js 18 or later. Download and install from nodejs.org

Verify installation:

bash
node --version  # Should show v18.0.0 or higher
2

Install Claude Code

Install Claude Code globally using npm:

bash
npm install -g @anthropic-ai/claude-code
3

Authenticate

Log in with your Anthropic account or API key:

bash
claude auth login

Follow the prompts to complete authentication.

4

Verify Installation

Check that Claude Code is working:

bash
claude --version

Troubleshooting

ℹ️Ready to Build?

Once Claude Code is installed, head to the Build Guide to start implementing your PRD.