To install on a new machine, clone as ~/.vim (git clone <repo> ~/.vim), cd ~/.vim, and git submodule update --init. Finally symlink the vimrc: ln -s ~/.vim/vimrc ~/.vimrc

Plugins are added as git submodules and bundled with pathogen, per vimcasts

To add a new plugin, from within the bundle directory: git submodule add <clone link> && git add . && git commit -m "Add <blah> plugin"

Note: the included config will add fzf.vim, which doesn't include the underlying fzf executable. See the fzf repo for how to install it.