Homebrew is a free and open-source software package management system that simplifies the installation of software on Apple's operating system, macOS, as well as Linux. The name is intended to suggest the idea of building software on the Mac depending on the user's taste. Originally written by Max Howell, the package manager has gained popularity in the Ruby on Rails community and earned praise for its extensibility. Homebrew uses a beer-themed naming convention for its features; for example, third-party repositories are called "taps", and binary packages are called "bottles". It has been recommended for its ease of use as well as its integration into the command-line interface. Homebrew is a member of the Open Source Collective, and is run entirely by unpaid volunteers.