flake.nix

@@ -71,6 +71,11 @@
 
           pkgs = import nixpkgs {
             inherit system;
+            config.allowUnfreePredicate = pkg: builtins.elem (lib.getName pkg)
+              [
+                "nvidia-x11"
+                "nvidia-settings"
+              ];
             overlays = [
               # Global overlays go here
             ] ++ config.overlays or [ ];
@@ -116,6 +121,7 @@
       ildkule = stableNixosConfig "ildkule" { };
       #ildkule-unstable = unstableNixosConfig "ildkule" { };
       shark = stableNixosConfig "shark" { };
+      wenche = stableNixosConfig "wenche" { };
 
       ustetind = stableNixosConfig "ustetind" {
         modules = [
@@ -154,6 +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

@@ -0,0 +1,39 @@
+{ config, fp, pkgs, values, lib, ... }:
+{
+  imports = [
+      # Include the results of the hardware scan.
+      ./hardware-configuration.nix
+      (fp /base)
+      (fp /misc/metrics-exporters.nix)
+
+      (fp /misc/builder.nix)
+    ];
+
+  sops.defaultSopsFile = fp /secrets/wenche/wenche.yaml;
+  sops.age.sshKeyPaths = [ "/etc/ssh/ssh_host_ed25519_key" ];
+  sops.age.keyFile = "/var/lib/sops-nix/key.txt";
+  sops.age.generateKey = true;
+
+  boot.loader.grub.device = "/dev/sda";
+
+  networking.hostName = "wenche"; # Define your hostname.
+
+  systemd.network.networks."30-ens18" = values.defaultNetworkConfig // {
+    matchConfig.Name = "ens18";
+    address = with values.hosts.wenche; [ (ipv4 + "/25") (ipv6 + "/64") ];
+  };
+
+  hardware.graphics.enable = true;
+  services.xserver.videoDrivers = [ "nvidia" ];
+  hardware.nvidia = {
+    modesetting.enable = true;
+    open = false;
+    package = config.boot.kernelPackages.nvidiaPackages.production;
+  };
+
+  # List packages installed in system profile
+  environment.systemPackages = with pkgs; [
+  ];
+
+  system.stateVersion = "24.11"; # Did you read the comment?
+}

hosts/wenche/hardware-configuration.nix

@@ -0,0 +1,27 @@
+{ config, lib, pkgs, modulesPath, ... }:
+
+{
+  imports =
+    [ (modulesPath + "/profiles/qemu-guest.nix")
+    ];
+
+  boot.initrd.availableKernelModules = [ "ata_piix" "uhci_hcd" "virtio_pci" "virtio_scsi" "sd_mod" "sr_mod" ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelModules = [ "nvidia"  ];
+  boot.extraModulePackages = [ ];
+
+  fileSystems."/" =
+    { device = "/dev/disk/by-uuid/4e8ecdd2-d453-4fff-b952-f06da00f3b85";
+      fsType = "ext4";
+    };
+
+  swapDevices = [ {
+    device = "/var/lib/swapfile";
+    size = 16*1024;
+  } ];
+
+  networking.useDHCP = lib.mkDefault false;
+  # networking.interfaces.ens18.useDHCP = lib.mkDefault true;
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+}

shells/cuda.nix

@@ -0,0 +1,45 @@
+# nix develop .#cuda
+# Copied from https://nixos.wiki/wiki/CUDA
+{ pkgs }:
+
+pkgs.mkShell {
+  name = "cuda-env-shell";
+  buildInputs = with pkgs; [
+    autoconf
+    binutils
+    curl
+    freeglut
+    git
+    gitRepo
+    gnumake
+    gnupg
+    gperf
+    libGL
+    libGLU
+    m4
+    ncurses5
+    procps
+    stdenv.cc
+    unzip
+    util-linux
+    xorg.libX11
+    xorg.libXext
+    xorg.libXi
+    xorg.libXmu
+    xorg.libXrandr
+    xorg.libXv
+    zlib
+
+    cudatoolkit
+    linuxPackages.nvidia_x11
+
+    # Other applications, like
+    hashcat
+  ];
+
+  env = {
+    CUDA_PATH = pkgs.cudatoolkit;
+    EXTRA_LDFLAGS = "-L/lib -L${pkgs.linuxPackages.nvidia_x11}/lib";
+    EXTRA_CCFLAGS = "-I/usr/include";
+  };
+}

values.nix

@@ -64,6 +64,10 @@ in rec {
       ipv4 = pvv-ipv4 234;
       ipv6 = pvv-ipv6 234;
     };
+    wenche = {
+      ipv4 = pvv-ipv4 240;
+      ipv6 = pvv-ipv6 240;
+    };
   };
 
   defaultNetworkConfig = {