diff --git a/flake.nix b/flake.nix
index 524dea0..c52daad 100644
--- a/flake.nix
+++ b/flake.nix
@@ -121,4 +121,14 @@
       };
     });
   };
+  nixConfig = {
+    extra-substituters = [
+      "https://rstats-on-nix.cachix.org"
+      "https://rde.cachix.org"
+    ];
+    extra-trusted-public-keys = [
+      "rstats-on-nix.cachix.org-1:vdiiVgocg6WeJrODIqdprZRUrhi1JzhBnXv7aWI6+F0="
+      "rde.cachix.org-1:yRxQYM+69N/dVER6HNWRjsjytZnJVXLS/+t/LI9d1D4="
+    ];
+  };
 }