diff --git a/ctl.sh b/ctl.sh
index 00e007d..5682f74 100755
--- a/ctl.sh
+++ b/ctl.sh
@@ -48,7 +48,7 @@ function os {
 	}
 	function rebuild {
 		echo "Rebuild OS config: ${1}"
-		sudo nixos-rebuild --flake ./os#${1} switch
+		sudo nixos-rebuild --flake ./os#${1} switch --impure
 	}
 	function upgrade {
 		echo "Upgrade channels and rebuild ${1}"
diff --git a/os/hardware/lenovo-thinkpad-e14.nix b/os/hardware/lenovo-thinkpad-e14.nix
index 37e177e..4dc1821 100644
--- a/os/hardware/lenovo-thinkpad-e14.nix
+++ b/os/hardware/lenovo-thinkpad-e14.nix
@@ -12,6 +12,7 @@
   boot.initrd.availableKernelModules = [ "xhci_pci" "thunderbolt" "nvme" "usb_storage" "sd_mod" ];
   boot.initrd.kernelModules = [ ];
   boot.kernelModules = [ "kvm-intel" ];
+  boot.kernelParams = [ "modprobe.blacklist=dvb_usb_rtl28xxu" ];
   boot.extraModulePackages = [ ];
 
   fileSystems."/" =
@@ -43,4 +44,5 @@
   hardware.cpu.intel.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
   hardware.bluetooth.enable = true;
   hardware.ledger.enable = true;
+  hardware.rtl-sdr.enable = true;
 }
diff --git a/os/system/packages.nix b/os/system/packages.nix
index 6ddc90c..1d81cb2 100644
--- a/os/system/packages.nix
+++ b/os/system/packages.nix
@@ -1,4 +1,10 @@
-{ pkgs, ... }: {
+{ config, pkgs, ... }: 
+let
+    unstable = import
+    (builtins.fetchTarball https://github.com/nixos/nixpkgs/tarball/nixpkgs-unstable)
+    # reuse the current configuration
+    { config = config.nixpkgs.config; };
+in {
 
   nixpkgs.config = {
     allowUnfree = true;
@@ -19,6 +25,7 @@
     enableSSHSupport = true;
   };
 
+
   environment.systemPackages = with pkgs; [
     fd
     fzf
@@ -40,7 +47,12 @@
     docker-buildx
     appimage-run
     gimp
+    unstable.libation
+    unstable.ledger-live-desktop
+    unstable.android-tools
+    unstable.android-udev-rules
   ];
+
   services.logind.extraConfig = ''
     RuntimeDirectorySize=20G
   '';
diff --git a/os/users/master.nix b/os/users/master.nix
index 49542a1..4ad518e 100644
--- a/os/users/master.nix
+++ b/os/users/master.nix
@@ -4,7 +4,7 @@
     isNormalUser = true;
     description = "master";
     initialPassword = "master";
-    extraGroups = [ "networkmanager" "wheel" "docker" ];
+    extraGroups = [ "networkmanager" "wheel" "docker" "plugdev" ];
   };
 
   home-manager.users.master = {
@@ -37,9 +37,10 @@
       hunspell
       hunspellDicts.de_CH
       imagemagick
-      ledger-live-desktop
       solana-cli
       sqlite
+      rtl-sdr
+      brave
     ];
 
     programs = {