Simplify nixpkgs eval

darwin/default.nix

@@ -1,27 +1,23 @@
-{ top, overlays }:
+{ top, nixpkgs }:
 let
   inherit (top.nixunstable) lib;
   mac =
     {
       system ? "aarch64-darwin",
       name,
-      channel ? top.nixunstable,
       hm ? top.hmunstable,
     }:
     let
-      nixpkgs = import channel {
-        inherit system overlays;
-      };
+      pkgs = nixpkgs.${system};
     in
     top.darwin.lib.darwinSystem {
-      inherit system;
+      inherit pkgs system;
       specialArgs = {
-        inherit nixpkgs overlays top;
+        inherit top;
         inherit (top) self;
       };
       modules = [
         {
-          nixpkgs.overlays = overlays;
           home-manager = {
             extraSpecialArgs = {
               inherit top;

flake.nix

@@ -54,34 +54,46 @@
     { self, ... }@top:
     let
       local_overlay = import ./overlays;
-      overlays = [
+      overlays = system: [
         top.agenix.overlays.default
         local_overlay
         top.nixvimunstable.overlays.default
+        top.proxmox.overlays.${system}
+        top.nurpkgs.overlays.default
+        top.vsext.overlays.default
       ];
       metadata = builtins.fromJSON (builtins.readFile ./network.json);
-    in
-    top.flake-parts.lib.mkFlake { inputs = top; } {
       systems = [
         "aarch64-linux"
         "x86_64-linux"
         "aarch64-darwin"
       ];
+      nixpkgs = top.nixunstable.lib.genAttrs systems (
+        system:
+        import top.nixunstable {
+          inherit system;
+          config = {
+            allowUnfree = true;
+            allowUnfreePredicate = _: true;
+            permittedInsecurePackages = [ "ventoy-1.1.05" ];
+          };
+          overlays = overlays system;
+        }
+      );
+    in
+    top.flake-parts.lib.mkFlake { inputs = top; } {
+      inherit systems;
 
       flake = {
         colmenaHive = top.colmena.lib.makeHive (
           {
             meta = {
-              nixpkgs = import top.nixunstable {
-                inherit overlays;
-                system = "x86_64-linux";
-              };
+              nixpkgs = nixpkgs.x86_64-linux;
               specialArgs = {
                 inherit
                   metadata
                   self
                   top
-                  overlays
                   ;
               };
             };
@@ -105,11 +117,11 @@
           ) self.nixosConfigurations)
         );
 
-        darwinConfigurations = (import ./darwin { inherit top overlays; });
+        darwinConfigurations = (import ./darwin { inherit top nixpkgs; });
 
-        nixosConfigurations = (import ./hosts { inherit top overlays metadata; });
+        nixosConfigurations = (import ./hosts { inherit top nixpkgs metadata; });
 
-        homeConfigurations = (import ./home { inherit top overlays metadata; });
+        homeConfigurations = (import ./home { inherit top nixpkgs metadata; });
 
         modules = import ./modules;
 
@@ -125,7 +137,7 @@
         }:
         {
           _module.args = {
-            pkgs = import top.nixunstable { inherit system overlays; };
+            pkgs = nixpkgs.${system};
           };
 
           packages = (import ./pkgs { inherit pkgs; });

home/default.nix

@@ -1,22 +1,10 @@
 {
   metadata,
-  overlays,
+  nixpkgs,
   top,
 }:
 let
-  pkgs =
-    system:
-    (import top.nixunstable {
-      inherit system;
-      config = {
-        allowUnfree = true;
-        allowUnfreePredicate = _: true;
-      };
-      overlays = overlays ++ [
-        top.nurpkgs.overlays.default
-        top.vsext.overlays.default
-      ];
-    });
+  pkgs = system: nixpkgs.${system};
   user =
     system: host: username:
     top.hmunstable.lib.homeManagerConfiguration {

hosts/default.nix

@@ -1,7 +1,7 @@
 {
   top,
-  overlays,
   metadata,
+  nixpkgs,
 }:
 let
   vm = args: (unstable (args // { extraMods = [ top.nixos-generators.nixosModules.all-formats ]; }));
@@ -22,8 +22,7 @@ let
         {
           nixpkgs = {
             inherit system;
-            overlays =
-              overlays ++ (channel.lib.optional (system == "x86_64-linux") top.proxmox.overlays.${system});
+            pkgs = nixpkgs.${system};
           };
         }
         # Imported ones

modules/nix-conf.nix

@@ -79,11 +79,5 @@ in
         ];
       };
     };
-
-    nixpkgs.config = {
-      allowUnfree = true;
-      allowUnfreePredicate = _: true;
-      permittedInsecurePackages = [ "ventoy-1.1.05" ];
-    };
   };
 }