Copy And Paste Between Neovim-Vim And Other Apps On Mac OS

Add this to your ~/.vimrc or ~/.config/nvim/init.vim to copy and paste to and from vim/neovim and other apps:

set clipboard=unnamed

When that's in place, your y..., d..., and p commands work with other apps. (e.g. yy will copy the current line which you can paste in another app. and, you can copy something from another app and use p to paste it into vim/neovim)