As the number of developers on a project, the number of projects in an Organization, or the complexity of a single project increases, it also becomes increasingly difficult to keep our development environments operational. From changing dependencies and differing server versions to running completely different operating systems specially windows machines of FrontEnd team, keeping the process of getting a running development environment sane and repeatable is non-trivial.
Getting the development environments identically setup can be a huge undertaking. On top of that, some people use Mac while others Use Linux or Windows. Before you know it, developers will be throwing computers through walls exhausted from constantly configuring and configuring. Windows machine devs yelling WTF is this Imagemagick , people using Mac asking which is better macports vs homebrew vs fink.
Vagrant solves all of this by introducing a common configuration format and workflow for describing and building development environments repeatably across Mac OS X, Windows, or Linux.