For various reasons, applications originally installed by the Mac OS X Installer disc (DVD or CD) -- Mail.app, Activity Viewer, etc. -- can become unusable. This can occur due to user deletion, ...

Homebrew is a free, open-source package manager for Linux and MacOS that simplifies the installation and management of software. Think of Homebrew as a command-line version of the App Store that ...

The Mac has several third-party package managers for installing additional software. Here's how to use the Nix package manager with macOS. Nix is a package manager that provides container-based ...

Homebrew is a macOS package manager that lets users install and manage UNIX tools and 3rd party software. Here's how to get started. Unlike most UNIX/Linux-based systems, macOS doesn't provide a ...

[Editor’s note: This article is part of our series of articles on installing and upgrading to Lion (OS X 10.7). We also have a complete guide to installing and upgrading to Mountain Lion (OS X 10.8).] ...