nixos-config/modules/fonts/default.nix

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

  iosevka-aile = pkgs.iosevka.override {
    privateBuildPlan = {
      family = "Iosevka Aile";
      desc = "Sans serif";
      spacing = "quasi-proportional";
      snapshotFamily = "Iosevka Aile";
      snapshotFeature = { "NWID" = 0; };
      export-glyph-names = true;

      variants.design = {
        capital-i = "serifless";
        capital-j = "serifless";
        capital-k = "straight-serifless";
        capital-m = "flat-bottom";
        capital-w = "straight-flat-top";
        a = "double-storey-serifless";
        d = "toothed-serifless";
        e = "flat-crossbar";
        f = "flat-hook";
        g = "single-storey-serifless";
        i = "serifless";
        j = "flat-hook-serifless";
        k = "straight-serifless";
        l = "serifless";
        r = "compact";
        t = "flat-hook";
        u = "toothed";
        w = "straight-flat-top";
        y = "straight";
        long-s = "flat-hook";
        eszet = "longs-s-lig";
        lower-iota = "flat-tailed";
        lower-lambda = "straight-turn";
        cyrl-ef = "serifless";
        cyrl-capital-ka = "symmetric-connected-serifless";
        cyrl-ka = "symmetric-connected-serifless";
        cyrl-capital-u = "straight";
        at = "fourfold";
        percent = "rings-continuous-slash";
      };

      derivingVariants.mathtt.design = {
        capital-i = "serifed";
        capital-j = "serifless";
        capital-k = "straight-serifless";
        capital-m = "flat-bottom";
        capital-w = "straight-flat-top";
        a = "double-storey-serifless";
        d = "toothed-serifless";
        e = "flat-crossbar";
        f = "flat-hook";
        g = "single-storey-serifless";
        i = "serifed";
        j = "flat-hook-serifed";
        k = "straight-serifless";
        l = "serifed";
        r = "compact";
        t = "flat-hook";
        u = "toothed";
        w = "straight-flat-top";
        y = "straight";
        long-s = "flat-hook";
        eszet = "longs-s-lig";
        lower-iota = "flat-tailed";
        lower-lambda = "straight-turn";
        cyrl-ef = "serifless";
        cyrl-capital-ka = "symmetric-connected-serifless";
        cyrl-ka = "symmetric-connected-serifless";
        cyrl-capital-u = "straight";
        at = "fourfold";
        percent = "rings-continuous-slash";
      };

      widths.normal = {
        shape = 600;
        menu = 5;
        css = "normal";
      };
    };
    set = "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;

      fonts = with pkgs; [
        (nerdfonts.override { fonts = [ "CascadiaCode" "DroidSansMono" "FiraCode" "Inconsolata" "Iosevka" "Monoid" "Meslo" "Noto" "SourceCodePro" ]; })
        corefonts
        dejavu_fonts
        google-fonts
        kochi-substitute
        material-icons
        noto-fonts-emoji
        recursive
        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" ];
        };
      };
    };
  };
}