diff --git a/modules/core/system.nix b/modules/core/system.nix
index cc2ab7c..71ecb33 100644
--- a/modules/core/system.nix
+++ b/modules/core/system.nix
@@ -14,6 +14,8 @@
         "nix-command"
         "flakes"
       ];
+      # substituters = [ "http://violet.booping.local" ];
+      # trusted-public-keys = [ "violet.booping.local:2gshN3xfGSL7eKFc8tGkqSoIb3WQxuB2RJ8DuakLLqc=%" ];
     };
     gc = {
       automatic = true;
@@ -22,6 +24,11 @@
     };
   };
 
+  programs.nix-ld = {
+    enable = true;
+    libraries = with pkgs; [ ];
+  };
+
   # nixpkgs = {
   #   overlays = [
   #     self.overlays.default
@@ -56,6 +63,6 @@
     ipaexfont
   ];
 
-  time.timeZone = "Europe/Amsterdam";
+  time.timeZone = lib.mkDefault "Europe/Amsterdam";
   system.stateVersion = "24.05";
 }