Add the package by default

Signed-off-by: Hadi <112569860+anotherhadi@users.noreply.github.com>

flake.nix

@@ -50,7 +50,7 @@
       '';
     };
   in {
-    nixosModules.default = import ./nix/module.nix;
+    nixosModules.default = import ./nix/module.nix { inherit self; };
 
     packages.${system} = {
       backend = backendPkg;

nix/module.nix

@@ -1,6 +1,8 @@
+{ self }:
 {
   config,
   lib,
+  pkgs,
   ...
 }: let
   cfg = config.services.iknowyou;
@@ -22,6 +24,7 @@ in {
 
     package = lib.mkOption {
       type = lib.types.package;
+      default = self.packages.${pkgs.stdenv.hostPlatform.system}.default;
       description = "The IKY package (must expose bin/server and share/iky/frontend/).";
     };