update system

modules/nixos/fonts/nerd-fonts.nix

@@ -0,0 +1,24 @@
+{
+  pkgs,
+  lib,
+  config,
+  ...
+}:
+with lib;
+
+let
+  cfg = config.fonts.nerd-fonts;
+in
+{
+  options.fonts.nerd-fonts = {
+    enable = mkEnableOption "Enable nerdfonts";
+  };
+
+  config = mkIf cfg.enable {
+    fonts = {
+      packages = with pkgs; [
+        nerd-fonts.symbols-only
+      ];
+    };
+  };
+}