diff --git a/os/common.nix b/os/common.nix
index 64dd327..7ab92fb 100644
--- a/os/common.nix
+++ b/os/common.nix
@@ -1,7 +1,11 @@
 { config, pkgs, ... }:
 {
   nix.package = pkgs.nixVersions.latest;
-  nix.settings = { experimental-features = [ "nix-command" "flakes" ]; };
+  nix.settings = {
+    experimental-features = [ "nix-command" "flakes" ];
+    extra-substituters = [ "https://nixcache.antoinevaure.fr/" ];
+    extra-trusted-public-keys = [ "nixcache.antoinevaure.fr:KbcKN97zPmsDUCNAXj5g1/WWJEk2WnyMgI6CmwgX/QY=" ];
+  };
   nixpkgs.config.allowUnfree = true;