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Advantages of Vagrant
Vagrant allows you to easily package up a virtual environment that can be shared among fellow developers. This packaged virtual environment is often referred to as a Vagrant box. A box can be configured to mirror the production environment where your web application or code will be running. This can help minimize any bugs or issues when your application/code is deployed to the production environment.
The beauty of Vagrant's configuration (known as a Vagrantfile) is often small and can be easily edited and tested. The syntax of a Vagrantfile is easy to understand and offers a simple way to build a complex environment.
Vagrant can be used by many different members of a team, including those on the development team, the operations team, and the design team.