correct flake, global settings

flake.nix

@@ -6,9 +6,8 @@
     import-tree.url = "github:vic/import-tree";
     disko.url = "github:nix-community/disko";
     disko.inputs.nixpkgs.follows = "nixpkgs";
-    };
-
   };
-
+  
-  outputs = inputs: inputs.flake-parts.lib.mkFlake {inherit inputs;} (inputs.import-tree ./modules);
+  outputs = inputs: inputs.flake-parts.lib.mkFlake { inherit inputs; }
+   (inputs.import-tree ./modules);
 }

modules/platform/nixsettings.nix

@@ -0,0 +1,20 @@
+{ inputs, ... }: {
+  config = {
+    systems = [
+      "aarch64-linux"
+      "x86_64-linux"
+    ];
+
+    perSystem = { pkgs, system, ... }: {
+      _module.args.pkgs = import inputs.nixpkgs {
+        inherit system;
+        config.allowUnfree = true;
+      };
+      
+      _module.args.pkgs-unstable = import inputs.nixpkgs-unstable {
+        inherit system;
+        config.allowUnfree = true;
+      };
+    };
+  };
+}