Homebrew is a package management system that simplifies the installation of software on the Mac OS X operating system. It is a free/open source software project to simplify installation of other free/open source software. It is similar in aim and function to MacPorts and Fink. Homebrew has experimental support for Linux through the Linuxbrew project. It was written by Max Howell and has gained popularity in the Ruby on Rails community and earned praise for its extensibility. In 2012, Homebrew had the largest number of new contributors on GitHub. In 2013, Homebrew had both the largest number of contributors and issues closed of any project on Github.