Move mkHost helper into a separate module

hosts/marauder/default.nix

@@ -5,18 +5,10 @@
     ./backup.nix
     ./boot.nix
     ./hardware.nix
-    ../../modules/nixos
   ];
 
-  time.timeZone = "America/Los_Angeles";
-  
   nixpkgs.config.allowUnfree = true;
 
-  nix.settings.experimental-features = [
-    "nix-command"
-    "flakes"
-  ];
-
   services = {
     xserver = {
       enable = true;
@@ -27,6 +19,4 @@
     };
     displayManager.defaultSession = "cinnamon";
   };
-
-  system.stateVersion = "24.05";
 }

hosts/monolith/default.nix

@@ -1,20 +1 @@
-{ config, lib, pkgs, inputs, outputs, ... }:
-{
-  imports = [
-    outputs.nixosModules
-  ];
-
-  time.timeZone = "America/Los_Angeles";
-
-  nix.settings.experimental-features = [
-    "nix-command"
-    "flakes"
-  ];
-
-  networking = {
-    hostName = "monolith";
-    networkmanager.enable = true;
-  };
-
-  system.stateVersion = "24.05";
-}
+{ ... }: {}