diff --git a/hosts/gunter/configuration.nix b/hosts/gunter/configuration.nix
index 9fbe951..187c824 100644
--- a/hosts/gunter/configuration.nix
+++ b/hosts/gunter/configuration.nix
@@ -139,8 +139,19 @@
       "root"
       "torjus"
     ];
-    substituters = [ "https://cuda-maintainers.cachix.org" ];
+    trusted-substituters = [
+      "https://nix-cache.home.2rjus.net"
+      "https://cache.nixos.org"
+      "https://cuda-maintainers.cachix.org"
+    ];
+    substituters = [
+      "https://nix-cache.home.2rjus.net"
+      "https://cache.nixos.org"
+      "https://cuda-maintainers.cachix.org"
+    ];
     trusted-public-keys = [
+      "nix-cache.home.2rjus.net-1:2kowZOG6pvhoK4AHVO3alBlvcghH20wchzoR0V86UWI="
+      "cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY="
       "cuda-maintainers.cachix.org-1:0dq3bujKpuEPMCX6U4WylrUDZ9JyUG0VpVZa7CNfq5E="
     ];
   };