flake cleanup

flake.nix

@@ -5,6 +5,9 @@
     nixpkgs = {
       url = "github:nixos/nixpkgs/nixos-26.05";
     };
+    nixpkgs-unstable = {
+      url = "github:nixos/nixpkgs/nixos-unstable";
+    };
     home-manager = {
       url = "github:nix-community/home-manager/release-26.05";
       inputs.nixpkgs.follows = "nixpkgs";
@@ -12,32 +15,30 @@
     nix-flatpak = {
       url = "github:gmodena/nix-flatpak/?ref=latest";
     };
-    nixpkgs-unstable = {
-      url = "github:nixos/nixpkgs/nixos-unstable";
-    };
   };
 
   outputs = inputs @ {
     self,
     nixpkgs,
+    nixpkgs-unstable,
     home-manager,
     nix-flatpak,
-    nixpkgs-unstable,
     ...
   }: let
     system = "x86_64-linux";
   in {
     nixosConfigurations = {
       phostron = nixpkgs.lib.nixosSystem {
-        inherit system;
         specialArgs = {inherit inputs;};
         modules = [
+
           ({config, pkgs, ...}: {
+            nixpkgs.hostPlatform = system;
             nixpkgs.config.allowUnfree = true;
             nixpkgs.overlays = [
               (final: prev: {
                 unstable = import nixpkgs-unstable {
-                  inherit (prev) system;
+                  system = prev.stdenv.hostPlatform.system;
                   config.allowUnfree = true;
                 };
               })
@@ -60,6 +61,7 @@
               ];
             };
           }
+
         ];
       };
     };