feat: add 'gammastep' to niri deskopt

home/hosts/andromache/default.nix

@@ -46,5 +46,5 @@ in
     taskwarrior.config.recurrence = lib.mkForce "on";
   };
 
-  home.packages = ../packages.nix;
+  home.packages = import ../packages.nix { inherit pkgs; };
 }

home/modules/desktop/niri/default.nix

@@ -15,4 +15,11 @@
       wlsunset
     ];
   };
+
+  services.gammastep = {
+    enable = true;
+    provider = "manual";
+    latitude = 51.05;
+    longitude = 3.71667;
+  };
 }