Clone the current repository in ~/.
To initialize execute ./setup.sh, existent in the scripts folder.
To add or remove vim modules, add the corresponding github repos in /scripts/packages and then execute . Do not tamper with the /scripts/packages_legacy file, as it keeps track of the previous configuration.
Finally, backup your .vim/, .vimrc and create soft links to automatically sync the changes you make to the repository.
ln -s ~/vim/ ~/.vim
ln -s ~/vim/vimrc ~/.vimrc
My Vim cheatsheet: https://docs.google.com/document/d/1G-RNkSP521vA6fK5FTeAyWD2JW_raE61OQlB60To_dQ/edit?usp=sharing