Adds gnome stuff. See https://github.com/NixOS/nixpkgs/blob/master/ni…

…xos/modules/services/x11/desktop-managers/gnome3.nix and https://github.com/NixOS/nixpkgs/blob/master/nixos/modules/services/desktops/gnome3/glib-networking.nix

configuration.nix

@@ -1,7 +1,7 @@
 # My glorious all powerful NixOS configuration file
 # https://github.com/JorelAli/nixos
 
-{ config, pkgs, ... }:
+{ config, pkgs, lib, ... }:
 
 with builtins; let 
 
@@ -49,6 +49,30 @@ in let
 
   color = id: (import ./programconfigs/configutil.nix).getColor id false;
 
+
+
+  nixos-gsettings-desktop-schemas = let
+    defaultPackages = with pkgs; [ gsettings-desktop-schemas gnome3.gnome-shell ];
+  in with lib;
+  pkgs.runCommand "nixos-gsettings-desktop-schemas" { preferLocalBuild = true; }
+    ''
+     mkdir -p $out/share/gsettings-schemas/nixos-gsettings-overrides/glib-2.0/schemas
+     ${concatMapStrings
+        (pkg: "cp -rf ${pkg}/share/gsettings-schemas/*/glib-2.0/schemas/*.xml $out/share/gsettings-schemas/nixos-gsettings-overrides/glib-2.0/schemas\n")
+        (defaultPackages)}
+     chmod -R a+w $out/share/gsettings-schemas/nixos-gsettings-overrides
+     cat - > $out/share/gsettings-schemas/nixos-gsettings-overrides/glib-2.0/schemas/nixos-defaults.gschema.override <<- EOF
+       [org.gnome.desktop.background]
+       picture-uri='file://${pkgs.nixos-artwork.wallpapers.simple-dark-gray}/share/artwork/gnome/nix-wallpaper-simple-dark-gray.png'
+       [org.gnome.desktop.screensaver]
+       picture-uri='file://${pkgs.nixos-artwork.wallpapers.simple-dark-gray-bottom}/share/artwork/gnome/nix-wallpaper-simple-dark-gray_bottom.png'
+       [org.gnome.shell]
+       favorite-apps=[ 'org.gnome.Epiphany.desktop', 'org.gnome.Geary.desktop', 'org.gnome.Music.desktop', 'org.gnome.Photos.desktop', 'org.gnome.Nautilus.desktop', 'org.gnome.Software.desktop' ]
+     EOF
+     ${pkgs.glib.dev}/bin/glib-compile-schemas $out/share/gsettings-schemas/nixos-gsettings-overrides/glib-2.0/schemas/
+    '';
+
+
 ##### NixOS configuration starts here ##########################################
 
 in {
@@ -183,6 +207,10 @@ in {
 
     BAT_PAGER = "less -RF";                   # Use less -RF as the pager for bat
 
+    GIO_EXTRA_MODULES = [ "${pkgs.gnome3.glib-networking.out}/lib/gio/modules" ];
+
+    NIX_GSETTINGS_OVERRIDES_DIR = "${nixos-gsettings-desktop-schemas}/share/gsettings-schemas/nixos-gsettings-overrides/glib-2.0/schemas";
+
   };
 
 ##### /etc/ Files ##############################################################
@@ -603,11 +631,15 @@ in {
   security.sudo.wheelNeedsPassword = false;  # Use 'sudo' without a password
 
 ##### Services #################################################################
+
+  systemd.packages = [ pkgs.glib-networking ];
 
   services = {
 
     dunst.enable = true;
     xcompmgr.enable = true;
+
+    dbus.packages = [pkgs.glib-networking];
 
     ### Compton ###########################################
     # Compositing effects for windows (Blur backgrounds!) #