First, prepare fzf and riggrep, so we use fzf.vim out of box.
brew install fzf
brew install ripgrep
git clone --depth=1 https://github.com/hushicai/vimrc.git ~/.vim_runtime
sh ~/.vim_runtime/install.sh
sh ~/.vim_runtime/uninstall.sh
rm -rf ~/.vim_runtime
cd ~/.vim_runtime
git pull --rebase