- create:
    - ~/.cache/vim/bkp
    - ~/.cache/vim/swap
    - ~/.local/var/vim/undo
    - ~/.vim/colors

- link:
    ~/.gitconfig: dotfiles/gitconfig
    ~/.tmux.conf: dotfiles/tmux.conf
    # TODO: clean up and install linediff script
    ~/.vimrc: vim/vimrc
    ~/.vim/colors/inkpot.vim: vim/inkpot.vim