feat(nixos): pass inputs and hostName as specialArgs to nixosSystem

modules/configurations/nixos.nix

@@ -1,4 +1,9 @@
-{ config, lib, ... }:
+{
+  config,
+  lib,
+  inputs,
+  ...
+}:
 let
   inherit (lib.trivial) pipe;
   inherit (lib.attrsets) filterAttrs mapAttrs';
@@ -13,10 +18,8 @@ let
     {
       name = hostName;
       value = lib.nixosSystem {
-        modules = [
-          value
-          { networking = { inherit hostName; }; }
-        ];
+        specialArgs = { inherit inputs hostName; };
+        modules = [ value ];
       };
     };
 in

modules/flake-parts/modules.nix

@@ -0,0 +1,4 @@
+{ inputs, ... }:
+{
+  imports = [ inputs.flake-parts.flakeModules.modules ];
+}

modules/hostSpec.nix

@@ -1,3 +1,15 @@
+{ config, ... }:
 {
-  flake.hostSpec.hosts = { };
+  flake.hostSpec.hosts = {
+    "nixos/test".imports = with config.flake.modules.nixos; [ networking ];
+    "nixos/test".config = {
+      boot.loader.systemd-boot.enable = true;
+      fileSystems."/" = {
+        device = "/dev/sda1";
+        fsType = "ext4";
+      };
+      nixpkgs.hostPlatform = "x86_64-linux";
+      system.stateVersion = "25.05";
+    };
+  };
 }

modules/modules/nixos/networking.nix

@@ -0,0 +1,7 @@
+{
+  flake.modules.nixos.networking =
+    { hostName, ... }:
+    {
+      networking = { inherit hostName; };
+    };
+}