actually fix flake

flake.nix

@@ -178,7 +178,6 @@
     # Nix hardware
     steamdeck-nixos-hardware = {
       url = "github:NixOS/nixos-hardware/master";
-      inputs.nixpkgs.follows = "steamdeck-nixpkgs";
     };
 
     # steam rom manager
@@ -197,6 +196,18 @@
       url = "github:LnL7/nix-darwin";
       inputs.nixpkgs.follows = "desktop-nixpkgs";
     };
+
+    #####################################################
+    #                    Common                         #
+    #####################################################
+
+    nixpkgs-unstable = {
+      url = "github:NixOS/nixpkgs/nixos-unstable";
+    };
+
+    nixpkgs-stable = {
+      url = "github:NixOS/nixpkgs/nixos-24.11";
+    };
   };
 
   outputs =
@@ -242,7 +253,11 @@
       steamdeck-steam-rom-manager,
 
       # MacBook
-      nix-darwin
+      nix-darwin,
+
+      # Common
+      nixpkgs-unstable,
+      nixpkgs-stable,
     }@inputs:
     let
       inherit (self) outputs;