diff --git a/nixos/base.nix b/nixos/base.nix
index 548f774..c04e2f0 100644
--- a/nixos/base.nix
+++ b/nixos/base.nix
@@ -230,9 +230,14 @@
   # Enable CUPS to print documents.
   services.printing.enable = true;
 
-  services.udev.packages = with pkgs; [
-    yubikey-personalization
-  ];
+  services.udev = {
+    packages = with pkgs; [
+      yubikey-personalization
+    ];
+    extraRules = ''
+      SUBSYSTEM=="usb", ATTRS{idVendor}=="04b8", ATTRS{idProduct}=="0202", MODE="0666", GROUP="dialout"
+    '';
+  };
 
   services.yubikey-agent.enable = true;
 }
diff --git a/nixos/desktop.nix b/nixos/desktop.nix
index e3e6599..345f8a2 100644
--- a/nixos/desktop.nix
+++ b/nixos/desktop.nix
@@ -119,6 +119,7 @@
       winDecStyles = ["classic"];
     })
     firefoxpwa
+    qpwgraph
     yubioath-flutter
   ];