diff --git a/system/home/desktop/default.nix b/system/home/desktop/default.nix
index ef03923d..1025647e 100644
--- a/system/home/desktop/default.nix
+++ b/system/home/desktop/default.nix
@@ -26,7 +26,16 @@
     ];
     file.${config.gtk.gtk2.configLocation}.force = true;
   };
-  services.syncthing.enable = true;
+  services = {
+    syncthing.enable = true;
+    gammastep = {
+      enable = true;
+      tray = true;
+      provider = "manual";
+      latitude = 51.7;
+      longitude = -1.2;
+    };
+  };
   gtk = {
     enable = true;
     gtk2.configLocation = "${config.xdg.configHome}/gtk-2.0/gtkrc";