diff --git a/home/vinzenz/default.nix b/home/vinzenz/default.nix
index 227ed06..95573f1 100644
--- a/home/vinzenz/default.nix
+++ b/home/vinzenz/default.nix
@@ -16,6 +16,7 @@
         "adbusers"
         "kvm"
         "input"
+        "video"
       ];
       shell = pkgs.zsh;
       autoSubUidGidRange = true;
diff --git a/home/vinzenz/niri.nix b/home/vinzenz/niri.nix
index fa3d008..53e6899 100644
--- a/home/vinzenz/niri.nix
+++ b/home/vinzenz/niri.nix
@@ -1,8 +1,13 @@
-{ pkgs, ... }:
+{
+  pkgs,
+  lib,
+  devices,
+  config,
+  ...
+}:
 {
   config = {
     home.sessionVariables.NIXOS_OZONE_WL = "1";
-
     home.packages = with pkgs; [
       xwayland-satellite
       alacritty
@@ -24,8 +29,6 @@
       };
     };
 
-    # services.swayidle.enable = true;
-
     programs.niri.settings = {
       input.keyboard.xkb.layout = "de";
 
@@ -56,7 +59,7 @@
         # Suggested binds for running programs: terminal, app launcher, screen locker.
         "Mod+T".action.spawn = "alacritty";
         "Mod+D".action.spawn = "fuzzel";
-        "Super+Alt+L".action.spawn = "swaylock";
+        "Super+Alt+L".action.spawn = "${config.programs.swaylock.package}/bin/swaylock";
 
         # You can also use a shell. Do this if you need pipes, multiple commands, etc.
         # Note: the entire command goes as a single argument in the end.
diff --git a/home/vinzenz/swaylock.nix b/home/vinzenz/swaylock.nix
index 9a4bc2b..291a90c 100644
--- a/home/vinzenz/swaylock.nix
+++ b/home/vinzenz/swaylock.nix
@@ -1,21 +1,40 @@
 # based on https://codeberg.org/kiara/cfg/src/commit/b9c472acd78c9c08dfe8b6a643c5c82cc5828433/home-manager/kiara/swaylock.nix#
-{ pkgs, ... }:
+{ pkgs, config, ... }:
 {
-  programs.swaylock = {
-    enable = true;
-    package = pkgs.swaylock-effects;
-    # https://github.com/jirutka/swaylock-effects/blob/master/swaylock.1.scd
-    settings = {
-      screenshot = true;
-      effect-blur = "9x9";
-      effect-vignette = "0.5:0.5";
-      fade-in = 0.5;
-      font-size = 75;
-      indicator-caps-lock = true;
-      clock = true;
-      indicator-radius = 400;
-      show-failed-attempts = true;
-      ignore-empty-password = true;
+  config = {
+    programs.swaylock = {
+      enable = true;
+      package = pkgs.swaylock-effects;
+      # https://github.com/jirutka/swaylock-effects/blob/master/swaylock.1.scd
+      settings = {
+        screenshot = true;
+        effect-blur = "9x9";
+        effect-vignette = "0.2:0.2";
+        fade-in = 0.5;
+        font-size = 75;
+        indicator-caps-lock = true;
+        clock = true;
+        indicator-radius = 400;
+        show-failed-attempts = true;
+        ignore-empty-password = true;
+        grace = 2;
+        color = "000000";
+        indicator-thickness = 20;
+      };
+    };
+
+    services.swayidle = {
+      enable = true;
+      timeouts = [
+        {
+          timeout = 60;
+          command = "${config.programs.swaylock.package}/bin/swaylock";
+        }
+        #{
+        #  timeout = 90;
+        #  command = "${pkgs.systemd}/bin/systemctl suspend";
+        #}
+      ];
     };
   };
 }
diff --git a/home/vinzenz/waybar.nix b/home/vinzenz/waybar.nix
index 22e608d..a3797cf 100644
--- a/home/vinzenz/waybar.nix
+++ b/home/vinzenz/waybar.nix
@@ -1,4 +1,9 @@
-{ pkgs, device, ... }:
+{
+  pkgs,
+  device,
+  config,
+  ...
+}:
 {
   home.packages = with pkgs; [
     waybar
@@ -8,6 +13,7 @@
 
   programs.waybar = {
     enable = true;
+    systemd.enable = true;
     settings = {
       mainBar = {
         layer = "top";
@@ -105,6 +111,8 @@
         backlight = {
           device = "intel_backlight";
           format = "{percent}% ";
+          on-scroll-down = "light -U 1";
+          on-scroll-up = "light -A 1";
         };
         cpu = {
           interval = 1;
diff --git a/hosts/vinzenz-lpt2/configuration.nix b/hosts/vinzenz-lpt2/configuration.nix
index 5267e89..5ec706e 100644
--- a/hosts/vinzenz-lpt2/configuration.nix
+++ b/hosts/vinzenz-lpt2/configuration.nix
@@ -27,6 +27,15 @@
     #  ''ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIALWKm+d6KL6Vl3grPOcGouiNTkvdhXuWJmcrdEBY2nw ronja-ssh-host-key''
     #];
 
-    programs.adb.enable = true;
+    programs = {
+      adb.enable = true;
+      light = {
+        enable = true;
+        brightnessKeys = {
+          enable = true;
+          step = 5;
+        };
+      };
+    };
   };
 }