cat ~/.config/fontconfig/fonts.conf
<?xml version="1.0"?><!DOCTYPE fontconfig SYSTEM "fonts.dtd">
<fontconfig>
<dir>~/.fonts</dir>
<alias>
<family>sans-serif</family>
<prefer>
<family>Noto Sans</family>
<family>Noto Sans Symbols</family>
<family>Noto Sans Symbols2</family>
<family>DejaVu Sans</family>
</prefer>
</alias>
</fontconfig>