Mac Initial Setup Guide

This guide is a development environment setup document for Apple Silicon Macs. Setup methods for Intel Macs are not covered.

What is Homebrew?

Homebrew is a package manager for macOS. Unlike the App Store, it's a community-run open-source repository that allows developers to freely install and manage the tools and libraries they need from the command line.

Why You Need Homebrew

Most development tools are not available on the App Store. Essential tools like Git, Node.js, Python, and Docker require downloading from their respective websites and going through complex installation processes. With Homebrew, you can solve all of this with simple commands.

Key Features

• Package Installation: Install programs with a single command
• Dependency Management: Automatically installs required libraries
• Version Management: Keep installed packages up to date

Before You Start

Installing Homebrew

Check Installation

Check if Homebrew is already installed

if command -v brew &> /dev/null; then
    echo "Homebrew is already installed."
    brew --version
else
    echo "Homebrew is not installed."
fi

Install Homebrew

Run the Homebrew installation script

/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"

Environment Setup

Add the Homebrew path to your terminal configuration file

echo 'eval "$(/opt/homebrew/bin/brew shellenv)"' >> ~/.zprofile

Apply immediately to the current terminal session

eval "$(/opt/homebrew/bin/brew shellenv)"

Verify Installation

Confirm the installation is complete

brew --version

Next Steps

Homebrew installation is complete.

Next Step: Installing Development Tools