diff --git a/dotfiles/sway/config b/dotfiles/sway/config
index 57a4292..5bbabee 100644
--- a/dotfiles/sway/config
+++ b/dotfiles/sway/config
@@ -33,7 +33,7 @@ floating_modifier $mod normal
 bindsym $mod+Shift+c reload
 bindsym $mod+Shift+e exec swaynag -t warning -m 'You pressed the exit shortcut. Do you really want to exit sway? This will end your Wayland session.' -b 'Yes, exit sway' 'swaymsg exit'
 bindsym $mod+Shift+p exec keepassxc
-bindsym $mod+z exec swaylock -t
+bindsym $mod+z exec swaylock -t -i /home/stefan/Downloads/bg.jpg
 bindsym $mod+Up exec light -A 5
 bindsym $mod+Down exec light -U 5
 bindsym Print exec grim -g "$(slurp)" - | wl-copy -t image/png
@@ -146,3 +146,10 @@ include /etc/sway/config.d/*
 exec mako --border-color=#cc6666 \
           --background-color=#2d2a2eee
 exec emacs --daemon
+
+set $gnome-schema org.gnome.desktop.interface
+exec_always {
+    gsettings set $gnome-schema gtk-theme 'Arc-Dark'
+    gsettings set $gnome-schema icon-theme 'elementary Xfce'
+    gsettings set $gnome-schema cursor-theme 'Capitaine Cursors - White'
+}
diff --git a/hardware/x360-raven.nix b/hardware/x360-raven.nix
index f13994a..19cca78 100644
--- a/hardware/x360-raven.nix
+++ b/hardware/x360-raven.nix
@@ -3,7 +3,9 @@
 # to /etc/nixos/configuration.nix instead.
 { config, lib, pkgs, ... }:
 
-{
+let
+  unstable = import <nixos-unstable> { config.allowUnfree = true; };
+in {
   imports = [
     <nixpkgs/nixos/modules/installer/scan/not-detected.nix>
     <nixos-hardware/common/cpu/amd>
@@ -29,7 +31,9 @@
   boot.extraModulePackages = [ ];
   boot.kernelModules = [ "kvm-amd" ];
   boot.kernelParams = [ "amdgpu.dpm=1" ];
-  boot.kernelPackages = pkgs.linuxPackages_latest;
+  #boot.kernelPackages = pkgs.linuxPackages_latest;
+  boot.kernelPackages = unstable.linuxPackages_latest;
+  #boot.kernelPackages = unstable.linux_testing;
 
 
   boot.loader.systemd-boot.enable = true;
diff --git a/roles/base.nix b/roles/base.nix
index 6499705..2c36d0d 100644
--- a/roles/base.nix
+++ b/roles/base.nix
@@ -81,7 +81,7 @@ precmd_user_func = "title"
   };
 
   users.users.stefan = {
-    extraGroups = [ "wheel" ];
+    extraGroups = [ "wheel" "dialout" ];
     home = "/home/stefan";
     isNormalUser = true;
     uid = 1000;
diff --git a/roles/desktop.nix b/roles/desktop.nix
index fffafcc..1c77b8a 100644
--- a/roles/desktop.nix
+++ b/roles/desktop.nix
@@ -43,6 +43,7 @@ in {
     noto-fonts-emoji
   ];
 
+  nixpkgs.config.allowUnfree = true;
   environment.systemPackages = with pkgs; [
     # firefox also needs:
     #
@@ -51,7 +52,7 @@ in {
     #
     # check in `about:support` that
     #  * Composing -> Webrenderer
-    unstable.firefox-bin
+    firefox-bin
     libva
     libva-utils
     mesa
@@ -60,9 +61,13 @@ in {
     mypaint
     mypaint-brushes
 
+    gsettings-desktop-schemas
+    glib  # provides gsettings
+    arc-theme
     capitaine-cursors
     elementary-xfce-icon-theme
     hicolor-icon-theme
+    numix-icon-theme
 
     alacritty
     imv
@@ -71,14 +76,14 @@ in {
     libsecret
     lxappearance
     mumble
-    mumble
     neofetch
     pavucontrol
+    pcmanfm
     pulseaudio
     pulsemixer
     unstable.keepassxc
     wl-clipboard
-    xfce.thunar
+    xdg_utils
     (
       pkgs.writeTextFile {
         name = "startsway";
@@ -88,12 +93,12 @@ in {
           #! ${pkgs.bash}/bin/bash
 
           export _JAVA_AWT_WM_NOREPARENTING=1
-          export MOZ_ENABLE_WAYLAND=1
-          export QT_AUTO_SCREEN_SCALE_FACTOR=0
+          export MOZ_ENABLE_WAYLAND=1 export QT_AUTO_SCREEN_SCALE_FACTOR=0
           export QT_WAYLAND_FORCE_DPI=96
           export QT_QPA_PLATFORM=wayland-egl
           export SDL_VIDEODRIVER=wayland
-          exec ${pkgs.dbus}/bin/dbus-run-session ${pkgs.sway}/bin/sway
+
+          ${pkgs.dbus}/bin/dbus-run-session ${pkgs.sway}/bin/sway
         '';
       }
     )
@@ -112,6 +117,8 @@ in {
     dataDir = "/home/stefan";
   };
 
+  services.avahi.enable = true;
+
   services.printing.enable = true;
   services.printing.drivers = [
     pkgs.gutenprint
diff --git a/roles/dev.nix b/roles/dev.nix
index ebec090..915bb95 100644
--- a/roles/dev.nix
+++ b/roles/dev.nix
@@ -7,6 +7,13 @@ let
   unstable = import <nixos-unstable> {};
 in {
   environment.systemPackages = with pkgs; [
+    arduino
+    avrdude
+    pkgsCross.avr.avrlibc  
+    pkgsCross.avr.libcCross
+    pkgsCross.avr.buildPackages.gcc8
+    pkgsCross.avr.buildPackages.binutils
+
     go
     python37
     python37Packages.pyls-black