diff --git a/base.nix b/base.nix
index da339f8..ee0058c 100644
--- a/base.nix
+++ b/base.nix
@@ -72,7 +72,7 @@
   nix.settings.experimental-features = [
     "nix-command"
     "flakes"
-    "pipe-operator"
+    /* "pipe-operator" # not supported on lix 2.91 */
   ];
   #nix.settings.allowed-users = [ "@builders" ]; # TODO: this
   nix.settings.allowed-users = [ "root" "pbsds" "@wheel" ]; # default is [ "*" ]
diff --git a/hardware/gpu/cuda.nix b/hardware/gpu/cuda.nix
index f7e8cf3..e024d9b 100644
--- a/hardware/gpu/cuda.nix
+++ b/hardware/gpu/cuda.nix
@@ -5,15 +5,17 @@ lib.mkMerge [
   # TODO: should we move it from flake.nix to here?
   # https://github.com/NixOS/nixos-hardware/blob/master/common/gpu/nvidia/default.nix
   # https://github.com/NixOS/nixos-hardware/blob/master/common/gpu/nvidia/prime.nix
-
-  hardware.opengl.enable = true;
 }
 (lib.mkIf (lib.versionOlder (lib.versions.majorMinor lib.version) "24.11") {
+  hardware.opengl.enable = true;
   hardware.opengl.driSupport = true;
   hardware.opengl.driSupport32Bit = true;
 })
 (lib.mkIf (lib.versionAtLeast (lib.versions.majorMinor lib.version) "24.11") {
-  hardware.nvidia.open = true;
+  hardware.graphics.enable = true;
+  hardware.graphics.enable32Bit = true;
+
+  # hardware.nvidia.open = if lib.versionOlder config.hardware.nvidia.package.version "560" then false else null;
 })
 {
 
diff --git a/users/pbsds/home/default.nix b/users/pbsds/home/default.nix
index c1ba2ce..ded376f 100644
--- a/users/pbsds/home/default.nix
+++ b/users/pbsds/home/default.nix
@@ -107,6 +107,7 @@
     nix-search-cli # nix-search
 
     #cargo
+    #cargo-update
     #cargo-edit
 
     #nim