Make bootloader timeout instant, use run0 instead of sudo, reformat

configuration.nix

@@ -20,29 +20,38 @@
     "flakes"
   ];
 
+  boot = {
+    loader = {
       # Use the systemd-boot EFI boot loader.
-  boot.loader.systemd-boot.enable = true;
-  boot.loader.efi.canTouchEfiVariables = true;
-
+      systemd-boot.enable = true;
+      efi.canTouchEfiVariables = true;
+      timeout = 0;
+    };
     # Use latest kernel.
-  boot.kernelPackages = pkgs.linuxPackages_latest;
+    kernelPackages = pkgs.linuxPackages_latest;
+  };
 
-  networking.hostName = "nixos";
-  networking.networkmanager.enable = true;
+  networking = {
+    hostName = "nixos";
+    networkmanager.enable = true;
+  };
 
-  services.desktopManager.plasma6.enable = true;
-  services.displayManager.sddm = {
+  services = {
+    desktopManager.plasma6.enable = true;
+    displayManager.sddm = {
       enable = true;
       wayland.enable = true;
     };
+  };
 
   users.users.sipb = {
     isNormalUser = true;
-    extraGroups = [ "wheel" ]; # Enable ‘sudo’ for the user.
+    extraGroups = [ "wheel" ];
     shell = pkgs.fish;
   };
 
   programs = {
+    kde-pim.enable = false; # Save some disk space
     git.enable = true;
     fish.enable = true;
     firefox.enable = true;
@@ -54,6 +63,9 @@
     micro
   ];
 
+  # Use run0 instead
+  security.sudo.enable = false;
+
   # 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.
   #