diff --git a/roles/desktop.nix b/roles/desktop.nix
index a0c563f..87a631f 100644
--- a/roles/desktop.nix
+++ b/roles/desktop.nix
@@ -90,7 +90,6 @@ in {
     libreoffice
     libsecret
     lxappearance
-    mpv
     mumble
     neofetch
     pavucontrol
diff --git a/roles/private.nix b/roles/private.nix
index a3fea9f..0776b19 100644
--- a/roles/private.nix
+++ b/roles/private.nix
@@ -4,27 +4,17 @@ let
   unstable = import <nixos-unstable> {};
 in {
   environment.systemPackages = with pkgs; [
-    # embedded
     arduino
     avrdude
-    gcc-arm-embedded
-    openocd
     pkgsCross.avr.avrlibc
-    pkgsCross.avr.buildPackages.binutils
-    pkgsCross.avr.buildPackages.gcc8
     pkgsCross.avr.libcCross
-
-    cura
+    pkgsCross.avr.buildPackages.gcc8
+    pkgsCross.avr.buildPackages.binutils
+    unstable.cura
     openscad
     kicad
   ];
 
-  # stm32 debugger
-  users.extraGroups.plugdev = { };
-  users.extraUsers.stefan.extraGroups = [ "plugdev" "dialout" ];
-  services.udev.packages = [ pkgs.openocd ];
-
-
   fileSystems."/mnt/nfs" = {
     device = "10.1.20.29:/srv/nfs";
     fsType = "nfs";