Add machine Behemoth

machines/Behemoth/configuration.nix

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+{ pkgs, ... }:
+
+{
+  imports = [
+    ./hardware-configuration.nix
+  ];
+
+  services = {
+    cron.enable = false;
+    gnome3.gnome-terminal-server.enable = true;
+  };
+
+  networking.dhcpcd.extraConfig = "noarp";
+
+  environment.systemPackages = with pkgs; [ xdiskusage ];
+
+  system.stateVersion = "19.03";
+}

machines/Behemoth/hardware-configuration.nix

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+# Do not modify this file!  It was generated by ‘nixos-generate-config’
+# and may be overwritten by future invocations.  Please make changes
+# to /etc/nixos/configuration.nix instead.
+{ config, lib, pkgs, ... }:
+
+{
+  imports =
+    [ <nixpkgs/nixos/modules/installer/scan/not-detected.nix>
+    ];
+
+  boot = {
+    loader = {
+      systemd-boot.enable = true;
+      efi.canTouchEfiVariables = true;
+    };
+    cleanTmpDir = true;
+    initrd.availableKernelModules = [ "ahci" "ohci_pci" "ehci_pci" "xhci_pci" "usbhid" "sd_mod" "sr_mod" ];
+    kernelModules = [ "kvm-amd" ];
+  };
+
+  fileSystems."/" =
+    { device = "/dev/disk/by-uuid/2f9455e9-ec8a-481e-9d5c-222eebab5e2d";
+      fsType = "ext4";
+    };
+
+  fileSystems."/boot" =
+    { device = "/dev/disk/by-uuid/DB3A-4C49";
+      fsType = "vfat";
+    };
+
+  nix.maxJobs = lib.mkDefault 6;
+
+  hardware = {
+    firmware = with pkgs; [ firmwareLinuxNonfree ];
+    enableAllFirmware = true;
+    enableKSM = true;
+    opengl = {
+      driSupport = true;
+      extraPackages = with pkgs; [ libvdpau-va-gl vaapiVdpau ];
+      driSupport32Bit = true;
+      extraPackages32 = with pkgs.pkgsi686Linux; [ libvdpau-va-gl vaapiVdpau ];
+    };
+
+    pulseaudio = {
+      enable = true;
+      support32Bit = true;
+      package = pkgs.pulseaudioFull;
+      zeroconf.discovery.enable = false;
+      extraClientConf = ''
+        autospawn = no
+      '';
+    };
+
+    bluetooth = {
+      enable = true;
+      powerOnBoot = true;
+    };
+  };
+
+  powerManagement = {
+    enable = true;
+    cpuFreqGovernor = "powersave";
+  };
+  services.upower.enable = true;
+  services.xserver.videoDrivers = [ "nvidia" ];
+  time.timeZone = "Europe/Berlin";
+}

machines/Behemoth/options.nix

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+{ lib, ... }:
+
+with lib;
+
+{
+  imports = [
+    ../../options/machine.nix
+    ../../options/copySysConf.nix
+  ];
+
+  config.machine = {
+    allowUnfree = true;
+    hostName = "Behemoth";
+    administrators = [ { name = "derped"; id = 1337; } ];
+    conffiles = [
+      "etcfiles"
+      "etcvars"
+      "fonts"
+      "zsh"
+    ];
+    pkgs = [
+      "base"
+      "dict"
+      "emacs"
+      "extra"
+      "cpp"
+      "haskell"
+      "mailutils"
+      "python3"
+      "rustpkgs"
+      "xpkgs"
+    ];
+    services = [
+      "desktop"
+      "udev"
+      "cups"
+    ];
+    firewall = {
+      enable = true;
+      allowPing = true;
+      allowedUDPPortRanges = [ { from = 1714; to = 1764; } ];
+      allowedTCPPortRanges = [ { from = 1714; to = 1764; } ];
+    };
+    desktop.wms = [ "i3" ];
+  };
+
+  config.system.copySysConf = {
+    enable = false;
+    addToNixPath = false;
+  };
+}