My nanorc file (nano 4.0)

.nanorc

## when compiling nano from source, make sure you use ./configure --enable-utf8. See https://devtidbits.com/2015/11/26/update-the-nano-text-editor-on-ubuntu/
## syntax highlighting: After compiling the latest version of nano from source, I wasn't able to find where the builtin syntax files are stored (if they were even installed). Thankfully, there's a repo on github with improved nano syntax highlighting files: https://github.com/scopatz/nanorc
include "~/.nano/*.nanorc"
## Options
## for more options see the nano manual: https://www.nano-editor.org/dist/latest/nano.pdf
## the color related options are set based on my terminal colors, and will probably not look good wth different colors
## set soft wrap
set softwrap
##  When soft line wrapping is enabled, make it wrap lines at blank characters (tabs and spaces) instead of always at the edge of the screen. (from nano manual)
set atblanks
## Use bold instead of reverse video for the title bar, status bar, key combos, function tags, line numbers, and selected text. This is overridden by setting the options titlecolor, statuscolor, keycolor, functioncolor, numbercolor, and selectedcolor. (from nano manual)
set boldtext
## Do case-sensitive searches by default.
set casesensitive
## Do not use the line below the title bar, leaving it entirely blank. Makes stuff look less cramped.
set emptyline
## set errorcolor
set errorcolor brightwhite,red
## display line numbers
set linenumbers
## color for selected text
set selectedcolor brightyellow,red
## color for status line
set statuscolor black,white
## color for title bar
set titlecolor black,white
## color for the numbers
set numbercolor white
## color for the shortcut key combos in the two help lines at the bottom of the screen.
set keycolor brightyellow