fixed zsh package nonsense (i hate carapace)

modules/system/core.nix

@@ -10,6 +10,8 @@
   }: let
     modules = with self.nixosModules; [
       userConfiguration
+      hyprland
+      zsh
     ];
   in {
     imports =
@@ -17,7 +19,13 @@
         /etc/nixos/hardware-configuration.nix
       ]
       ++ modules;
-
-    programs.zsh.enable = true;
+    nix.settings = {
+      cores = 6;
+      download-buffer-size = 524288000;
+      experimental-features = [
+        "nix-command"
+        "flakes"
+      ];
+    };
   };
 }