wenche: Fix nvidia driver. flake: add shells/cuda.

flake.nix

@@ -160,6 +160,15 @@
 
     devShells = forAllSystems (system: {
       default = nixpkgs.legacyPackages.${system}.callPackage ./shell.nix { };
+      cuda = let
+        cuda-pkgs = import nixpkgs {
+          inherit system;
+          config = {
+            allowUnfree = true;
+            cudaSupport = true;
+          };
+        };
+      in cuda-pkgs.callPackage ./shells/cuda.nix { };
     });
 
     packages = {

hosts/wenche/configuration.nix

@@ -27,7 +27,7 @@
   services.xserver.videoDrivers = [ "nvidia" ];
   hardware.nvidia = {
     modesetting.enable = true;
-    open = true;
+    open = false;
     package = config.boot.kernelPackages.nvidiaPackages.production;
   };
 

hosts/wenche/hardware-configuration.nix

@@ -7,7 +7,7 @@
 
   boot.initrd.availableKernelModules = [ "ata_piix" "uhci_hcd" "virtio_pci" "virtio_scsi" "sd_mod" "sr_mod" ];
   boot.initrd.kernelModules = [ ];
-  boot.kernelModules = [ ];
+  boot.kernelModules = [ "nvidia"  ];
   boot.extraModulePackages = [ ];
 
   fileSystems."/" =

shells/cuda.nix

@@ -0,0 +1,25 @@
+# nix develop .#cuda
+# Copied from https://nixos.wiki/wiki/CUDA
+{ pkgs  }:
+
+pkgs.mkShell {
+   name = "cuda-env-shell";
+   buildInputs = with pkgs; [
+     git gitRepo gnupg autoconf curl
+     procps gnumake util-linux m4 gperf unzip
+     cudatoolkit linuxPackages.nvidia_x11
+     libGLU libGL
+     xorg.libXi xorg.libXmu freeglut
+     xorg.libXext xorg.libX11 xorg.libXv xorg.libXrandr zlib
+     ncurses5 stdenv.cc binutils
+
+     # Other applications, like
+     hashcat
+   ];
+   shellHook = ''
+      export CUDA_PATH=${pkgs.cudatoolkit}
+      # export LD_LIBRARY_PATH=${pkgs.linuxPackages.nvidia_x11}/lib:${pkgs.ncurses5}/lib
+      export EXTRA_LDFLAGS="-L/lib -L${pkgs.linuxPackages.nvidia_x11}/lib"
+      export EXTRA_CCFLAGS="-I/usr/include"
+   '';
+}