diff --git a/hive.nix b/hive.nix
index 02498e5..0b6a3b8 100644
--- a/hive.nix
+++ b/hive.nix
@@ -159,7 +159,7 @@ in
 
           nix = {
             # Set NIX_PATH to the patched version of nixpkgs
-            nixPath = [ "nixpkgs=${sourcePkgs.path}" ];
+            nixPath = [ "nixpkgs=${builtins.storePath sourcePkgs.path}" ];
             optimise.automatic = true;
 
             gc = {
@@ -167,6 +167,14 @@ in
               dates = "weekly";
               options = "--delete-older-than 7d";
             };
+
+            settings =
+              {
+                substituters = [ "https://tvix-store.dgnum.eu/infra" ];
+              }
+              // (import ./machines/nixos/storage01/tvix-cache/cache-settings.nix {
+                caches = [ "infra" ];
+              });
           };
 
           # Allow unfree packages