https://polybar.github.io/
https://wiki.archlinux.org/title/Polybar
https://wiki.archlinux.org/index.php/Polybar

https://github.com/jaagr/polybar
https://github.com/jaagr/polybar/wiki
https://github.com/jaagr/polybar/wiki/Configuration
https://github.com/jaagr/polybar/wiki/Module:-i3

issues
https://github.com/jaagr/polybar/issues/871

!!! need dependency
extra/libmpdclient

community/
    polybar
    ttf-polybar-icons
        /usr/share/fonts/TTF/polybar-icons.ttf
aur/
    polybar
    polybar-git

/usr/share/doc/polybar/config

2018
https://arcolinux.com/how-to-install-polybar-and-use-it-on-i3-and-openbox/
????
https://www.youtube.com/watch?v=E6y-kE1cSvw
https://www.youtube.com/watch?v=S1jQfGcKjtA

cfg samples
https://github.com/tbetcke/dotfiles/
    https://github.com/tbetcke/dotfiles/blob/master/polybar_config
    https://github.com/tbetcke/dotfiles/blob/master/polybar_launch.sh
https://github.com/probe2k/bspwm_rice/blob/master/polybar/config.ini