diff --git a/nix/configurations/installer.nix b/nix/configurations/installer.nix
index 9b2c9404..0454e060 100644
--- a/nix/configurations/installer.nix
+++ b/nix/configurations/installer.nix
@@ -14,6 +14,13 @@ in
       (modulesPath + "/installer/cd-dvd/installation-cd-minimal.nix")
     ];
 
+    nix.settings = {
+      extra-substituters = ["https://leana8959.cachix.org"];
+      extra-trusted-substituters = ["https://leana8959.cachix.org"];
+      extra-trusted-public-keys = ["leana8959.cachix.org-1:CxQSAp8lcgMv8Me459of0jdXRW2tcyeYRKTiiUq8z0M="];
+      experimental-features = ["nix-command" "flakes"];
+    };
+
     nixpkgs = {
       hostPlatform = system;
       overlays = [self.overlays.default self.overlays.packages'];