diff --git a/home/fish/interactive.fish b/home/fish/interactive.fish
index 04ae800..c594843 100644
--- a/home/fish/interactive.fish
+++ b/home/fish/interactive.fish
@@ -1,3 +1,3 @@
-if test "$KITTY_STR" -eq 1
-  fastfetch
+if test "$KITTY_STR" = "1"
+    fastfetch
 end
diff --git a/hosts/tardis/default.nix b/hosts/tardis/default.nix
index 8e487ad..de27268 100644
--- a/hosts/tardis/default.nix
+++ b/hosts/tardis/default.nix
@@ -31,7 +31,7 @@
   services.xserver = {
     enable = true;
     displayManager.startx.enable = true;
-    videoDrivers = [ "modesetting" ];
+    videoDrivers = [ "modesetting" "nvidia" ];
     xkb = {
       layout = "us";
       variant = "";
diff --git a/hosts/tardis/nvidia.nix b/hosts/tardis/nvidia.nix
new file mode 100644
index 0000000..883467c
--- /dev/null
+++ b/hosts/tardis/nvidia.nix
@@ -0,0 +1,33 @@
+{ config, ... }:
+
+{
+  nix.settings = {
+    substituters = [ "https://cache.nixos-cuda.org" ];
+    trusted-public-keys = [
+      "cache.nixos-cuda.org:74DUi4Ye579gUqzH4ziL9IyiJBlDpMRn9MBN8oNan9M="
+    ];
+  };
+
+  hardware.graphics = {
+    enable = true;
+  };
+
+  services.xserver.videoDrivers = ["nvidia"];
+
+  hardware.nvidia = {
+    modesetting.enable = true;
+    powerManagement.enable = false;
+    powerManagement.finegrained = false;
+    open = true;
+    nvidiaSettings = true;
+    package = config.boot.kernelPackages.nvidiaPackages.stable;
+    prime = {
+      offload = {
+        enable = true;
+        enableOffloadCmd = true;
+      };
+      intelBusId = "PCI:0@0:2:0";
+      nvidiaBusId = "PCI:1@0:0:0";
+    };
+  };
+}