nixos-config/modules/fonts/default.nix

{
  lib,
  pkgs,
  config,
  ...
}:
with lib;
let
  cfg = config.eboskma.fonts;

  iosevka-aile = pkgs.iosevka-bin.override { variant = "Aile"; };
in
{
  options.eboskma.fonts = {
    enable = mkEnableOption "activate fonts";
    iosevka-aile = mkOption {
      description = "Install Iosevka Aile";
      type = types.bool;
      default = true;
    };
  };

  config = mkIf cfg.enable {
    fonts = {
      fontDir.enable = true;

      packages =
        with pkgs;
        [
          (nerdfonts.override {
            fonts = [
              "Iosevka"
              "Meslo"
              "Monaspace"
              "Noto"
            ];
          })
          corefonts
          dejavu_fonts
          google-fonts
          kochi-substitute
          material-icons
          monaspace
          noto-fonts-emoji
          ttf_bitstream_vera
          twitter-color-emoji
        ]
        ++ lib.optional cfg.iosevka-aile iosevka-aile;

      fontconfig = {
        defaultFonts = {
          serif = [ "Recursive Sans Casual Static Medium" ];
          sansSerif = [ (if cfg.iosevka-aile then "Iosevka Aile" else "DejaVu Sans") ];
          monospace = [ "Iosevka Nerd Font" ];
          emoji = [ "Twitter Color Emoji" ];
        };
      };
    };
  };
}