diff --git a/instances/odin/hm.nix b/instances/odin/hm.nix
index 6bbf0d9..d302099 100644
--- a/instances/odin/hm.nix
+++ b/instances/odin/hm.nix
@@ -147,6 +147,7 @@
     ../../modules/hm/update_background.nix
     ../../modules/hm/vim.nix
     ../../modules/hm/webapp.nix
+    ../../modules/hm/wl_update_background.nix
     ../../modules/hm/xidlehook.nix
     ../../modules/hm/xresources.nix
     ../../modules/hm/zathura.nix
diff --git a/instances/thor/hm.nix b/instances/thor/hm.nix
index dd99868..7992a10 100644
--- a/instances/thor/hm.nix
+++ b/instances/thor/hm.nix
@@ -138,6 +138,7 @@
     ../../modules/hm/update_background.nix
     ../../modules/hm/vim.nix
     ../../modules/hm/webapp.nix
+    ../../modules/hm/wl_update_background.nix
     ../../modules/hm/xidlehook.nix
     ../../modules/hm/xresources.nix
     ../../modules/hm/zathura.nix
diff --git a/modules/hm/hyprland.nix b/modules/hm/hyprland.nix
index 55c0e32..198660f 100644
--- a/modules/hm/hyprland.nix
+++ b/modules/hm/hyprland.nix
@@ -55,7 +55,7 @@
       # See https://wiki.hyprland.org/Configuring/Keywords/ for more
 
       # Execute your favorite apps at launch
-      exec-once = waybar & swww init & blueman-applet & nm-applet # & firefox
+      exec-once = waybar & swww init & blueman-applet & nm-applet & systemctl --user restart swayidle # & firefox
 
       # Source a file (multi-file configs)
       # source = ~/.config/hypr/myColors.conf
diff --git a/modules/hm/wl_update_background.nix b/modules/hm/wl_update_background.nix
new file mode 100644
index 0000000..8ea4d79
--- /dev/null
+++ b/modules/hm/wl_update_background.nix
@@ -0,0 +1,40 @@
+{ pkgs, ... }:
+let
+  update_time = "10m";
+  backgrounds_directory = "$HOME/Immagini/Sfondi/1080+/1440+";
+  update_script = pkgs.writeShellScriptBin "wl-update-background" ''
+    set -e
+    if [ $# -eq 0 ]; then
+      image=`${pkgs.findutils}/bin/find ${backgrounds_directory} -type f | ${pkgs.gnugrep}/bin/grep -v "/\." | ${pkgs.coreutils}/bin/shuf -n 1`
+    else
+      image="$1"
+    fi
+    echo "image: $image"
+    ${pkgs.swww}/bin/swww img "$image"
+  '';
+in
+{
+  home.packages = [ update_script ];
+
+  systemd.user.services."wl-update-background" = {
+    Unit = {
+      Description = "Set random desktop background using swww";
+      After = [ "graphical-session.pre.target" ];
+      PartOf = [ "graphical-session.target" ];
+      RequiresMountsFor = [ "/home/bertof/Immagini" ];
+    };
+    Install = { WantedBy = [ "graphical-session.target" ]; };
+    Service = {
+      Type = "oneshot";
+      IOSchedulingClass = "idle";
+      ExecStart = "${update_script}/bin/wl-update-background";
+    };
+  };
+
+  systemd.user.timers."wl-update-background" = {
+    Unit = { Description = "Set random desktop background using swww"; };
+    Timer = { OnUnitActiveSec = update_time; };
+    Install = { WantedBy = [ "timers.target" ]; };
+  };
+}
+