dotfiles/.config/fontconfig/fonts.conf

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE fontconfig SYSTEM "fonts.dtd">
<fontconfig>
  <!-- Set default fonts -->
  <alias>
    <family>monospace</family>
    <prefer>
      <family>Source Code Pro</family>
      <family>Noto Color Emoji</family>
    </prefer>
  </alias>
  <alias>
    <family>serif</family>
    <prefer>
      <family>Source Serif Pro</family>
      <family>Noto Color Emoji</family>
    </prefer>
  </alias>
  <alias>
    <family>sans-serif</family>
    <prefer>
      <family>Source Sans Pro</family>
      <family>Noto Color Emoji</family>
    </prefer>
  </alias>

  <!-- Add generic emoji family. -->
    <match target="pattern">
        <test qual="any" name="family"><string>emoji</string></test>
        <edit name="family" mode="assign" binding="same"><string>Noto Color Emoji</string></edit>
    </match>
</fontconfig>