diff --git a/modules/shared/nix/default.nix b/modules/shared/nix/default.nix
index 73cdb19..d78020e 100644
--- a/modules/shared/nix/default.nix
+++ b/modules/shared/nix/default.nix
@@ -15,10 +15,12 @@ in {
       substituters = [
         "https://cache.garnix.io"
         "https://nix-community.cachix.org"
+        "https://helix.cachix.org"
       ];
       trusted-public-keys = [
         "cache.garnix.io:CTFPyKSLcx5RMJKfLo5EEPUObbA78b0YQ2DTCJXqr9g="
         "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
+        "helix.cachix.org-1:ejp9KQpR1FBI2onstMQ34yogDm4OgU2ru6lIwPvuCVs="
       ];
       trusted-users = ["bddvlpr"];
       experimental-features = ["nix-command" "flakes"];
diff --git a/systems/dissension/hardware.nix b/systems/dissension/hardware.nix
index b94dae2..293bfbf 100644
--- a/systems/dissension/hardware.nix
+++ b/systems/dissension/hardware.nix
@@ -35,6 +35,11 @@
         refreshRate = 75;
         workspace = "3";
       }
+      {
+        # Valve index
+        name = "DP-2";
+        enabled = false;
+      }
     ];
     nvidia = {
       enable = true;