switch to kde plasma and enable bluetooth

configuration.nix

@@ -37,18 +37,16 @@
     LC_TIME = "de_DE.UTF-8";
   };
   services.xserver.enable = true;
-  services.displayManager.gdm.enable = true;
-  programs.dconf.profiles.gdm.databases = [
-    {
-      settings."org/gnome/desktop/interface".scaling-factor = lib.gvariant.mkUint32 1;
-    }
-  ];
-
-  services.desktopManager.gnome.enable = true;
   services.xserver.xkb = {
     layout = "eu";
     variant = "";
   };
+  services = {
+    desktopManager.plasma6.enable = true;
+    displayManager.sddm.enable = true;
+    displayManager.sddm.wayland.enable = true;
+  };
+
   security.doas.enable = true;
   security.sudo.enable = false;
   security.doas.extraRules = [
@@ -152,31 +150,31 @@
 
   environment.systemPackages = with pkgs; [
     git
-    gnomeExtensions.user-themes
-    gnomeExtensions.blur-my-shell
-  ];
-  environment.gnome.excludePackages = with pkgs; [
-    cheese # photo booth
-    eog # image viewer
-    epiphany # web browser
-    gedit # text editor
-    simple-scan # document scanner
-    totem # video player
-    yelp # help viewer
-    geary # email client
-    seahorse # password manager
-
-    # these should be self explanatory
-    gnome-calendar
-    gnome-characters
-    gnome-clocks
-    gnome-contacts
-    gnome-font-viewer
-    gnome-logs
-    gnome-maps
-    gnome-music
-    gnome-weather
+    kdePackages.discover # Optional: Software center for Flatpaks/firmware updates
+    kdePackages.kcalc # Calculator
+    kdePackages.kcharselect # Character map
+    kdePackages.kclock # Clock app
+    kdePackages.kcolorchooser # Color picker
+    kdePackages.kolourpaint # Simple paint program
+    kdePackages.ksystemlog # System log viewer
+    kdePackages.sddm-kcm # SDDM configuration module
+    kdePackages.isoimagewriter # Write hybrid ISOs to USB
+    kdePackages.partitionmanager # Disk and partition management
+    hardinfo2 # System benchmarks and hardware info
   ];
+  hardware.bluetooth = {
+    enable = true;
+    powerOnBoot = true;
+    settings = {
+      General = {
+        Experimental = true;
+        FastConnectable = true;
+      };
+      Policy = {
+        AutoEnable = true;
+      };
+    };
+  };
 
   # DO NOT CHANGE!!
   system.stateVersion = "26.05"; # Did you read the comment?