Both VIm 8.0 and Neovim have their own built-in package manager.
In VIm 8.0, create the following directories:
~/.vim/pack/*/start(where*may be any name e.g.~/.vim/pack/jimmy/start): Clone your required plugin into thestartdirectory just as you would if you were installing it for Pathogen. You need nothing more and no commands in your.vimrcfile.~/.vim/pack/*/opt(e.g.~/.vim/pack/jimmy/opt) for plugins that only need to be loaded as required. For colours, add a directory to theoptdirectory and then your colours e.g.~/.vim/pack/jimmy/opt/mycolors/colors/dracula.vim.
In Neovim, the directory structure follows the freedesktop’s XDG Base Directory Specification. Your configuration file is in ~/.config/nvim/init.vim, but your plugins go into:
~/.local/share/nvim/site/pack/*/start
See :h packages (VIm 8.0 and Neovim) for more information.