NixOS config

configuration.nix

# Edit this configuration file to define what should be installed on
# your system.  Help is available in the configuration.nix(5) man page
# and in the NixOS manual (accessible by running ‘nixos-help’).

{ config, pkgs, ... }:

{
  imports =
    [ # Include the results of the hardware scan.
      ./hardware-configuration.nix
    ];

  nixpkgs.config.allowUnfree = true;

  hardware.opengl.driSupport32Bit = true;
  hardware.opengl.extraPackages32 = with pkgs.pkgsi686Linux; [ libva ];
  hardware.pulseaudio.support32Bit = true;

  # Use the systemd-boot EFI boot loader.
  boot.loader = {
    efi = {
      canTouchEfiVariables = false;
      efiSysMountPoint = "/boot";
    };
    grub = {
       devices = [ "nodev" ];
       enable = true;
       version = 2;
       useOSProber = true; 
       efiSupport = true;
       efiInstallAsRemovable = true;
    };
  };


  networking.hostName = "gestalt"; # Define your hostname.
  networking.networkmanager.enable = true;
  # networking.wireless.enable = true;  # Enables wireless support via wpa_supplicant.

  # The global useDHCP flag is deprecated, therefore explicitly set to false here.
  # Per-interface useDHCP will be mandatory in the future, so this generated config
  # replicates the default behaviour.
  networking.useDHCP = false;
  networking.interfaces.eno1.useDHCP = true;

  # Configure network proxy if necessary
  # networking.proxy.default = "http://user:password@proxy:port/";
  # networking.proxy.noProxy = "127.0.0.1,localhost,internal.domain";

  # Select internationalisation properties.
  i18n.defaultLocale = "en_US.UTF-8";
  console = {
    font = "Lat2-Terminus16";
    keyMap = "us";
  };

  # Set your time zone.
  time.timeZone = "Europe/Berlin";

  nixpkgs.config.packageOverrides = pkgs: {
    nur = import (builtins.fetchTarball "https://github.com/nix-community/NUR/archive/master.tar.gz") {
      inherit pkgs;
    };
  };

  # List packages installed in system profile. To search, run:
  # $ nix search wget
  environment.systemPackages = with pkgs; [
    # requires x server
    alacritty
    firefox
    # kde stuff
    kdeApplications.akonadi-search
    ark

    curl
    git
    glxinfo
    nixfmt
    ntfs3g
    pciutils
    python3
    unzip
    vim
    wget
  ];

  # Some programs need SUID wrappers, can be configured further or are
  # started in user sessions.
  # programs.mtr.enable = true;
  programs.gnupg.agent = {
    enable = true;
    enableSSHSupport = true;
  };

  # List services that you want to enable:
  
  services.pcscd.enable = true;

  services.udev.packages = [
    pkgs.yubikey-personalization
    pkgs.libu2f-host
  ];

  # Enable the OpenSSH daemon.
  services.openssh.enable = true;

  # Open ports in the firewall.
  # networking.firewall.allowedTCPPorts = [ ... ];
  # networking.firewall.allowedUDPPorts = [ ... ];
  # Or disable the firewall altogether.
  # networking.firewall.enable = false;

  # Enable CUPS to print documents.
  services.printing.enable = true;

  # Enable sound.
  sound.enable = true;
  hardware.pulseaudio.enable = true;

  # Enable the X11 windowing system.
  services.xserver.enable = true;
  services.xserver.layout = "us";
  services.xserver.xkbOptions = "eurosign:e";

  services.xserver.videoDrivers = [
    "amdgpu"
#    "nvidia"
  ];

  services.xserver.xrandrHeads = [
     { monitorConfig = ''Option "Rotate" "normal"''; output = "DisplayPort-2"; }
     { monitorConfig = ''Option "Rotate" "left"''; output = "HDMI-A-0"; }
  ];

  # Enable touchpad support.
  # services.xserver.libinput.enable = true;

  # Enable the KDE Desktop Environment.
  services.xserver.displayManager.sddm.enable = true;
  services.xserver.desktopManager.plasma5.enable = true;
  # services.xserver.desktopManager.gnome3.enable = true;
  services.xserver.windowManager.i3.enable = true;

  # Define a user account. Don't forget to set a password with ‘passwd’.
  users.users.kaine = {
    isNormalUser = true;
    extraGroups = [ "wheel" "networkmanager" ]; # Enable ‘sudo’ for the user.
    openssh.authorizedKeys.keys = [
      "ssh-rsa AAAAB3NzaC1yc2EAAAABJQAAAQEA5K62E/ZFLEOIQmzKClxVAP5GmR+6ir+hWxPxK9XfvMZtTtCcnhXBnXNfQlSrX301INy9DiVfN+bRYHS3LU7TUfEcd6E5iwCOH6o9nRVZS7IkJDN/cw0m3co7cFeoayNZylIeACVfM7DwBjzzOXMV3T4hN5LbHkpv63CNTTTQqBaak+CZBQFmzMgIYGiEAi5a3yzZFpVh46JkaasDO2C9SfTNBIuCfaUIAbMbXb09B6FsirBdhndEI2fpT+1jYM0PUeqnxDbYuv5UDwDgKADo/HBAid1X4srJZzMjcnFjtwrazk3/DzyICnZM4R6xuw4cOYiDgfbfYsLYaT70YqFPUw=="
    ];
  };

  # This value determines the NixOS release with which your system is to be
  # compatible, in order to avoid breaking some software such as database
  # servers. You should change this only after NixOS release notes say you
  # should.
  system.stateVersion = "20.03"; # Did you read the comment?

}

hardware-configuration.nix

# 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.initrd.availableKernelModules = [ "xhci_pci" "ahci" "nvme" "usbhid" "usb_storage" "uas" "sd_mod" ];
  boot.initrd.kernelModules = [ ];
  boot.kernelModules = [ "kvm-intel" ];
  boot.extraModulePackages = [ ];

  fileSystems."/" =
    { device = "/dev/disk/by-uuid/e16d299b-8ee2-4808-a7c9-afaceded6c77";
      fsType = "btrfs";
      options = [ "subvol=@" ];
    };

  fileSystems."/home" =
    { device = "/dev/disk/by-uuid/e16d299b-8ee2-4808-a7c9-afaceded6c77";
      fsType = "btrfs";
      options = [ "subvol=@home" ];
    };

  fileSystems."/boot" =
    { device = "/dev/disk/by-uuid/E2F3-E199";
      fsType = "vfat";
    };

  swapDevices =
    [ { device = "/dev/disk/by-uuid/bbd190dd-b438-4f66-96e6-5c7fd97549b0"; }
    ];

  nix.maxJobs = lib.mkDefault 8;
  powerManagement.cpuFreqGovernor = lib.mkDefault "powersave";
}