Switch to unfree NVIDIA drivers and use Blender-bin to use CUDA

nixos/hardware/machines/desktop.nix

@@ -1,11 +1,5 @@
 # This file was initially made by 'nixos-generate-config', try not to edit too much
-{
-  config,
-  lib,
-  pkgs,
-  modulesPath,
-  ...
-}: let
+{ config, lib, pkgs, modulesPath, ... }: let
   # Set common boot paramaters
   commonKernelParams = [
     # Nvidia settings

nixos/hardware/nvidia.nix

@@ -1,4 +1,4 @@
-{config, ... }: {
+{pkgs, config, ... }: {
   # Enable video drivers                              
   services.xserver.videoDrivers = ["nvidia"];         
 
@@ -6,17 +6,12 @@
     modesetting.enable = true;
     nvidiaSettings = false;
     package = config.boot.kernelPackages.nvidiaPackages.beta;
-    open = true;
+    open = false;
   };
 
-  pkgs.stdenv.mkDerivation {
-  name = "cuda-env-shell";
-  buildInputs = with pkgs; [
-    cudatoolkit
-  ];
-  shellHook = ''
-    export CUDA_PATH=${pkgs.cudatoolkit}
-    export EXTRA_LDFLAGS="-L/lib -L${pkgs.linuxPackages.nvidia_x11}/lib"
-    export EXTRA_CCFLAGS="-I/usr/include"
-  '';
+  environment.sessionVariables = {
+    CUDA_PATH = "${pkgs.cudatoolkit}";
+    EXTRA_LDFLAGS = "-L/lib -L${pkgs.linuxPackages.nvidia_x11}/lib";
+    EXTRA_CCFLAGS = "-I/usr/include";
+  };
 }