refactor(nixos): move host configuration files -> inputs

inputs/system/hosts/ooksphone/default.nix

@@ -0,0 +1,43 @@
+{ pkgs, inputs, outputs, ... }:
+
+{
+  imports = [ ./modules ];
+
+  environment.packages = with pkgs; [
+    killall
+    hostname
+    man
+    coreutils
+  ];
+
+  environment.etcBackupExtension = ".bak";
+
+  system.stateVersion = "23.11";
+
+  nix = {
+    extraOptions = ''
+      experimental-features = nix-command flakes
+    '';
+    substituters = [
+      "https://cache.nixos.org?priority=10"
+      "https://helix.cachix.org"
+      "https://nix-community.cachix.org"
+    ];
+    trustedPublicKeys = [
+      "cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY="
+      "helix.cachix.org-1:ejp9KQpR1FBI2onstMQ34yogDm4OgU2ru6lIwPvuCVs="
+      "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
+    ];
+  };
+  
+  time.timeZone = "Pacific/Auckland";
+
+  user = {
+    shell = "${pkgs.fish}/bin/fish";
+  };
+
+  home-manager = {
+    extraSpecialArgs = { inherit inputs outputs; };
+    config = import ../../../home/user/ooks/ooksphone;
+  };
+}