diff --git a/common.nix b/common.nix
index 7b2ee45..425ce17 100644
--- a/common.nix
+++ b/common.nix
@@ -19,10 +19,12 @@
       substituters = lib.mkForce [
         "https://cache.nixos.org"
         "https://nix-community.cachix.org"
+        "http://192.168.88.252:5000"
       ];
       trusted-public-keys = lib.mkForce [
         "cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY="
         "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
+        "binarycache.example.com:fbOZkjmYt+dpxlSZbhNNT0WOAApJ1ZLvBBfQkTsBMis="
       ];
       trusted-users = [ "root" ];
       sandbox = true;