Move more things to the common host configuration

nix/hosts/PW05CH3L/configuration.nix

@@ -1,102 +1,9 @@
-{
-  headless ? false,
-  hostname,
-  inputs,
-  outputs,
-  pkgs,
-  self,
-  system,
-  username,
-  ...
-}:
+{ inputs, ... }:
 
 {
-  home-manager = {
-    extraSpecialArgs = {
-      inherit
-        hostname
-        inputs
-        outputs
-        headless
-        self
-        system
-        username
-        ;
-    };
-    useGlobalPkgs = true;
-    useUserPackages = true;
-
-    users."${username}" = import "${self}/nix/home/${username}";
-  };
-
-  nixpkgs = {
-    config = {
-      allowUnfree = true;
-    };
-
-    overlays = [
-      outputs.overlays.additions
-      outputs.overlays.modifications
-      outputs.overlays.stable-packages
-    ];
-  };
-
   nix.nixPath = [ "nixpkgs=${inputs.nixpkgs}" ];
 
-  # # Enable networking
-  # networking.networkmanager.enable = true;
-
-  # Set your time zone.
-  time.timeZone = "Europe/London";
-
-  # Select internationalisation properties.
-  i18n.defaultLocale = "en_GB.UTF-8";
-
-  i18n.extraLocaleSettings = {
-    LC_ADDRESS = "en_GB.UTF-8";
-    LC_IDENTIFICATION = "en_GB.UTF-8";
-    LC_MEASUREMENT = "en_GB.UTF-8";
-    LC_MONETARY = "en_GB.UTF-8";
-    LC_NAME = "en_GB.UTF-8";
-    LC_NUMERIC = "en_GB.UTF-8";
-    LC_PAPER = "en_GB.UTF-8";
-    LC_TELEPHONE = "en_GB.UTF-8";
-    LC_TIME = "en_GB.UTF-8";
-  };
-
-  # Configure console keymap
-  console.keyMap = "uk";
-
-  users.users.${username} = {
-    description = "Oliver Davies";
-    isNormalUser = true;
-
-    extraGroups = [
-      "docker"
-      "media"
-      "networkmanager"
-      "wheel"
-    ];
-
-    packages = with pkgs; [ ];
-  };
-
-  security.sudo.wheelNeedsPassword = false;
-
-  environment.systemPackages =
-    with pkgs;
-    [
-    ]
-    ++ pkgs.lib.optionals (!headless) [
-    ];
-
-  system.stateVersion = "22.11";
-
   nix = {
-    extraOptions = ''
-      trusted-users = root ${username}
-    '';
-
     gc = {
       automatic = true;
       dates = "daily";
@@ -107,12 +14,13 @@
 
     settings = {
       auto-optimise-store = true;
+
       experimental-features = [
         "nix-command"
         "flakes"
       ];
+
       warn-dirty = false;
     };
   };
-
 }