First Steps

Xcode

Xcode is Apple’s integrated development environment (IDE) for Swift, C, and C++, providing tools to build, test, and distribute apps across all Apple platforms.

You can install Xcode via the App Store.

Command Line Tools

The Command Line Tools package includes the Apple LLVM compiler, linker, Make, and other essential utilities for building and debugging software from the command line on macOS.

Installing the Command Line Tools

Remove old Command Line Tools

When upgrading your macOS development environment, remove old versions of the Command Line Tools to avoid conflicts.

Run the following command in the terminal:
Terminal window
```
sudo rm -rf /Library/Developer/CommandLineTools
```
Install the Command Line Tools
Terminal window
```
xcode-select --install
```
Confirm installation

When the software update popup appears, click Install and accept the Terms of Service to proceed with the installation.
Verify installation

After installation, the Command Line Tools are located at:
Terminal window
```
/Library/Developer/CommandLineTools/
```

Homebrew

Homebrew is the missing package manager for macOS.

Installing Homebrew

Open the terminal and run the following script:

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

Homebrew Cheat Sheet

Update Homebrew

brew update

Search a package

brew search <package>

Show package info

brew info <package>

List outdated packages

brew outdated

Upgrade a package

brew upgrade <package>

Upgrade all packages

brew upgrade