nixos-config/system/fonts.nix

{ pkgs, ... }:

{
  fonts.packages = with pkgs; [
    noto-fonts
    noto-fonts-extra
    noto-fonts-cjk
    noto-fonts-emoji
    (nerdfonts.override { fonts = [ "NerdFontsSymbolsOnly" ]; })
    fira-code
  ];
  fonts.fontconfig.defaultFonts = {
    serif = [ "Noto Serif" "emoji" ];
    sansSerif = [ "Noto Sans" "emoji" ];
    monospace = [ "Fira Code" "emoji" ];
    emoji = [ "Noto Color Emoji" "Symbols Nerd Font Mono" ];
  };
}