update system

modules/nixos/desktops/hyprland.nix

@@ -27,6 +27,10 @@ in
         systemd.enable = false;
         package = null;
         portalPackage = null;
+        settings.ecosystem = {
+          no_update_news = true;
+          no_donation_nag = true;
+        };
       };
       home = {
         packages = with pkgs; [ grim ];

modules/nixos/hardware/nvidia-proprietary.nix

@@ -54,6 +54,8 @@ in
 
     home-manager.users.${username}.wayland.windowManager.hyprland.settings = {
       cursor.no_hardware_cursors = true;
+      opengl.nvidia_anti_flicker = true;
+      # render.direct_scanout = 1;
     };
 
     environment = {

modules/nixos/hardware/q3279vwf.nix

@@ -27,7 +27,7 @@ in
       };
       monitor = [ "DP-1,2560x1440@75,0x0,1" ];
       xwayland.force_zero_scaling = true;
-      misc.vrr = 2; # VA suffers from VRR flicker
+      misc.vrr = 0; # VA suffers from VRR flicker
     };
   };
 }

modules/nixos/services/airprint.nix

@@ -20,7 +20,10 @@ in
       enable = true;
       extraBackends = [ pkgs.sane-airscan ];
     };
-    services.printing.enable = true;
+    services.printing = {
+      enable = true;
+      stateless = true;
+    };
     services.avahi = {
       enable = true;
       nssmdns4 = true;

modules/nixos/usecases/windows-vm.nix

@@ -50,6 +50,12 @@ in
       };
       spiceUSBRedirection.enable = true;
     };
-    services.spice-vdagentd.enable = true;
+
+    networking.firewall.trustedInterfaces = [ "virbr0" ];
+
+    services = {
+      spice-vdagentd.enable = true;
+      spice-webdavd.enable = true;
+    };
   };
 }