nixos/system/stylix.nix

{
  lib,
  pkgs,
  catppuccinVariant ? "Mocha",
  ...
}: {
  stylix = {
    base16Scheme = "${pkgs.base16-schemes}/share/themes/catppuccin-${lib.strings.toLower catppuccinVariant}.yaml";
    autoEnable = false;
    targets = {
      chromium.enable = true;
      console.enable = true;
    };
    image = ../wallpapers/default.jpg;
    polarity = "dark";
    opacity = {
      applications = 0.85;
      desktop = 1.0;
      popups = 0.5;
      terminal = 0.85;
    };
    cursor = let
      variant = "${lib.strings.toLower catppuccinVariant}Dark";
    in {
      package = pkgs.catppuccin-cursors.${variant};
      name = "Catppuccin-${catppuccinVariant}-Dark-Cursors";
    };
    fonts = let
      iosevkaCustomBuildPlan = {
        noCvSs = false;
        exportGlyphNames = false;
        ligations.inherits = "dlig";
        # variants.inherits = "ss05";
        weights = {
          Regular = {
            shape = 400;
            menu = 400;
            css = 400;
          };
          Bold = {
            shape = 700;
            menu = 700;
            css = 700;
          };
        };
        variants.design = {
          capital-q = "crossing-curly-tailed";
          e = "rounded";
          f = "tailed";
          g = "double-storey-open";
          i = "tailed";
          k = "cursive-serifless";
          l = "tailed-serifed";
          t = "bent-hook-asymmetric";
          v = "curly-serifless";
          w = "curly-serifless";
          x = "curly-serifless";
          y = "straight-turn-serifless";
          lower-lambda = "tailed-turn";
          lower-xi = "flat-top";
          lower-chi = "semi-chancery-curly";
          zero = "tall-slashed";
          three = "flat-top";
          six = "straight-bar";
          seven = "straight-serifless-crossbar";
          eight = "crossing-asymmetric";
          nine = "straight-bar";
          ampersand = "upper-open";
          at = "fourfold";
          cent = "through";
          percent = "rings-segmented-slash";
          lig-ltgteq = "flat";
        };
      };
    in {
      sizes = {
        applications = 16;
        desktop = 20;
        popups = 20;
        terminal = 16;
      };
      serif = rec {
        name = "Iosevka Custom Etoile";
        package = pkgs.iosevka.override {
          set = "etoile";
          privateBuildPlan = {
            inherit (iosevkaCustomBuildPlan) noCvSs exportGlyphNames variants weights;
            family = name;
            spacing = "quasi-proportional";
            serifs = "slab";
          };
        };
      };
      sansSerif = rec {
        name = "Iosevka Custom Aile";
        package = pkgs.iosevka.override {
          set = "aile";
          privateBuildPlan = {
            inherit (iosevkaCustomBuildPlan) noCvSs exportGlyphNames variants weights;
            family = name;
            spacing = "quasi-proportional";
            serifs = "sans";
          };
        };
      };
      monospace = rec {
        name = "Iosevka Custom";
        package = pkgs.iosevka.override {
          set = "custom";
          privateBuildPlan = {
            inherit (iosevkaCustomBuildPlan) noCvSs exportGlyphNames variants weights;
            family = name;
            spacing = "normal";
            serifs = "sans";
          };
        };
      };
      emoji = {
        name = "Noto Color Emoji";
        package = pkgs.noto-fonts-emoji;
      };
    };
    homeManagerIntegration.followSystem = true;
  };
}