diff --git a/hosts/modules/base.nix b/hosts/modules/base.nix
index 085224b..2eab27a 100644
--- a/hosts/modules/base.nix
+++ b/hosts/modules/base.nix
@@ -1,15 +1,28 @@
 { config, pkgs, inputs, ... }:
 {
   # Define a user account. Don't forget to set a password with ‘passwd’.
-  users.users.alex = {
-    isNormalUser = true;
-    description = "Alexander Wainwright";
-    extraGroups = [ "networkmanager" "wheel" "dialout" ];
-    packages = with pkgs; [
-    #  thunderbird
-    ];
-    shell = pkgs.fish;
-  };
+  users = {
+		users.alex = {
+			isNormalUser = true;
+			description = "Alexander Wainwright";
+			extraGroups = [
+				"dialout"
+				"input"
+				"networkmanager"
+				"plugdev"
+				"render"
+				"video"
+				"wheel"
+				];
+			packages = with pkgs; [
+			#  thunderbird
+			];
+			shell = pkgs.fish;
+		};
+		groups.pluggdev = {};
+	};
+
+	services.udev.packages = [ pkgs.rtl-sdr ];
 
   # this is to avoid some problem that happens apparently only when fish is
   # enabled, where generating man cahes takes a very long time. note that it may