Scope overlays and modules to specific host sets

hosts/hypnos/default.nix

@@ -1,12 +1,21 @@
-{ config, lib, ... }:
+{ config, lib, self, ... }:
 
 {
   imports = [
+    self.inputs.disko.nixosModules.disko
     ./hardware-configuration.nix
     ./disko-config.nix
     ../desktop.nix
   ];
 
+  nixpkgs = {
+    hostPlatform = "x86_64-linux";
+    config = {
+      allowUnfree = true;
+      nvidia.acceptLicense = true;
+    };
+  };
+
   boot.loader = {
     systemd-boot.enable = true;
     efi.canTouchEfiVariables = true;