build: fix packagers shell on darwin

caarlos0 · caarlos0 · commit abdde689ee5b · 2024-08-14T22:45:12.000-03:00
diff --git a/flake.nix b/flake.nix
@@ -33,10 +33,12 @@
         # nix develop .#packagers
         devShells.packagers = pkgs.mkShell {
           packages = with pkgs; [
-            apk-tools
             dpkg
+          ] ++ (lib.optionals pkgs.stdenv.isLinux [
+            apk-tools
             rpm
-          ];
+          ]);
+
         };
 
         # nix develop .#docs
