Add home-manager for power and screen locking control

This must be paired with adding home-manager to the nixos channels via

sudo nix-channel --add https://github.com/nix-community/home-manager/archive/master.tar.gz home-manager
sudo nix-channel --update

thenix/etc/nixos/configuration.nix

@@ -8,6 +8,7 @@
   imports =
     [ # Include the results of the hardware scan.
       ./hardware-configuration.nix
+      <home-manager/nixos>
     ];
 
   # Use the systemd-boot EFI boot loader.
@@ -25,8 +26,46 @@
     wget
   ];
 
-  #hardware.pulseaudio.enable = true;
-
+  home-manager.useGlobalPkgs = true;
+  home-manager.users.eliribble = { config, pkgs, ... }: {
+    imports = [
+      <plasma-manager/modules>
+    ];
+    home.homeDirectory = "/home/eliribble";
+    home.stateVersion = "24.11";
+    home.username = "eliribble";
+    programs.fish = {
+      enable = true;
+      interactiveShellInit = ''
+        set fish_greeting # Disable greeting
+      '';
+    };
+    programs.plasma = {
+      enable = true;
+      kscreenlocker = {
+        autoLock = false;
+        lockOnResume = false;
+	passwordRequired = false;
+	timeout = 0;
+      };
+      powerdevil = {
+        AC = {
+	  autoSuspend = {
+	    action = "nothing";
+	    idleTimeout = null;
+	  };
+	  dimDisplay = {
+	    enable = true;
+	    idleTimeout = 600;
+	  };
+	  inhibitLidActionWhenExternalMonitorConnected = true;
+	  turnOffDisplay = {
+	    idleTimeout = "never";
+	  };
+	};
+      };
+    };
+  };
   # Select internationalisation properties.
   i18n.defaultLocale = "en_US.UTF-8";
 
@@ -76,10 +115,11 @@
   # Define a user account. Don't forget to set a password with ‘passwd’.
   users.users.eliribble = {
     isNormalUser = true;
-    initialPassword = "let_eliribble_in";
     extraGroups = [ "wheel" ]; # Enable ‘sudo’ for the user.
   };
 
+  xdg.autostart.enable = true;
+
   # This option defines the first version of NixOS you have installed on this particular machine,
   # and is used to maintain compatibility with application data (e.g. databases) created on older NixOS versions.
   #