" gratis https://swordandsignals.com/2020/12/13/5-lines-in-vimrc.html
set hlsearch    " highlight all search results
set ignorecase  " do case insensitive search
set incsearch   " show incremental search results as you type
set number      " display line number
set noswapfile  " disable swap file
" can also be summarized as
set hls ic is nu noswf