stable

flake.nix

@@ -14,33 +14,23 @@
     let
       system = "x86_64-linux";
       pkgs = nixpkgs.legacyPackages.${system};
-      overlays = {
-        nixpkgs.overlays = [
-          (final: prev: {
-            stable = import nixpkgs-stable {
-              system = prev.system;
-            };
-          })
-        ];
-      };
+      pkgs-stable = nixpkgs-stable.legacyPackages.${system};
     in {
       nixosConfigurations.nixos = nixpkgs.lib.nixosSystem {
         inherit system;
-        modules = [
-          system/configuration.nix
-          overlays
-        ];
+        specialArgs = {
+          inherit pkgs-stable;
+        };
+        modules = [ system/configuration.nix ];
       };
       homeConfigurations.ahnwuoa = home-manager.lib.homeManagerConfiguration {
         inherit pkgs;
         extraSpecialArgs = rec {
+          inherit pkgs-stable;
           username = "ahnwuoa";
           homeDirectory = "/home/${username}";
         };
-        modules = [
-          user/home.nix
-          overlays
-        ];
+        modules = [ user/home.nix ];
       };
     };
 }

user/home.nix

@@ -1,4 +1,4 @@
-{ config, pkgs, username, homeDirectory, ... }:
+{ config, pkgs, pkgs-stable, username, homeDirectory, ... }:
 
 {
   imports = [
@@ -12,7 +12,7 @@
   home.packages = with pkgs; [
     (pkgs.symlinkJoin {
       name = "firefox";
-      paths = [ pkgs.stable.firefox ];
+      paths = [ pkgs-stable.firefox ];
       buildInputs = [ pkgs.makeWrapper ];
       postBuild = ''
         wrapProgram $out/bin/firefox \
@@ -30,7 +30,7 @@
     picom
     obs-studio
     screenkey
-    pkgs.stable.safeeyes
+    pkgs-stable.safeeyes
     libsForQt5.kcalc
     libsForQt5.kolourpaint
     libsForQt5.filelight