Move all of NixOS to nixos/ in preparation of the repository merge

nixos/modules/config/fonts/ghostscript.nix

@@ -0,0 +1,32 @@
+{ config, pkgs, ... }:
+
+with pkgs.lib;
+
+{
+
+  options = {
+
+    fonts = {
+
+      enableGhostscriptFonts = mkOption {
+        default = false;
+        description = ''
+          Whether to add the fonts provided by Ghostscript (such as
+          various URW fonts and the “Base-14” Postscript fonts) to the
+          list of system fonts, making them available to X11
+          applications.
+        '';
+      };
+
+    };
+
+  };
+
+
+  config = mkIf config.fonts.enableGhostscriptFonts {
+
+    fonts.extraFonts = [ "${pkgs.ghostscript}/share/ghostscript/fonts" ];
+
+  };
+
+}