diff --git a/system/optional/default.nix b/system/optional/default.nix
index f18973e4..dd275fcc 100644
--- a/system/optional/default.nix
+++ b/system/optional/default.nix
@@ -6,5 +6,6 @@
     ./gaming.nix
     ./stylix.nix
     ./ollama.nix
+    ./sdr.nix
   ];
 }
diff --git a/system/optional/nfs.nix b/system/optional/nfs.nix
index d8e3b59b..00e4a561 100644
--- a/system/optional/nfs.nix
+++ b/system/optional/nfs.nix
@@ -1,4 +1,5 @@
-{ config, lib, ... }: {
+{ config, lib, ... }:
+{
 
   options.nfs.client.enable = lib.mkEnableOption "Enable Nas (via NFS) as a client";
   # options.nfs.server.enable = lib.mkEnableOption "Enable Nas (via NFS) as the server";
diff --git a/system/optional/sdr.nix b/system/optional/sdr.nix
new file mode 100644
index 00000000..65f3584e
--- /dev/null
+++ b/system/optional/sdr.nix
@@ -0,0 +1,9 @@
+{ config, lib, ... }:
+{
+  options.sdr.enable = lib.mkEnableOption "Enable rtl-sdr";
+
+  config = lib.mkIf config.sdr.enable {
+    hardware.rtl-sdr.enable = true;
+    users.users."lilith".extraGroups = [ "plugdev" ];
+  };
+}