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{
  config,
  pkgs,
  inputs,
  ...
}:
{
  imports = [
    ./hardware-configuration.nix
    ./disko.nix
    ./impermanence.nix
    ./router.nix
    ./immich.nix
    ./postgresql.nix
  ];

  powerManagement.powertop.enable = true;

  hardware.graphics.extraPackages = with pkgs; [
    vpl-gpu-rt
    intel-media-driver
  ];
  hardware.graphics.enable = true;

  # Use the systemd-boot EFI boot loader.
  boot.loader.systemd-boot.enable = true;
  boot.loader.efi.canTouchEfiVariables = true;

  networking.hostName = "oden";
  networking.hostId = "0de6fce1"; # needed for zfs, taken from /etc/machine-id

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

  i18n.defaultLocale = "en_US.UTF-8";
  console = {
    font = "Lat2-Terminus16";
    keyMap = "mod-dh-iso-us";
  };

  users.mutableUsers = false;
  users.users.mathias = {
    isNormalUser = true;
    extraGroups = [ "wheel" ];
    shell = pkgs.fish;
    hashedPasswordFile = config.age.secrets."password-hash.txt".path;
    openssh.authorizedKeys.keys = [
      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIPC69ml72mqbn7L3QkpsCJuWdrKFYFNd0MaS5xERbuSF"
      "ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBEdUe7mxGdV/Q37RKndPzDHisFb7q/xm+L97jcGluSDOA8MGt/+wTxpyGxfyEqaMvwV2bakaMVHTB3711dDu5kE="
      "ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBLZ6OVyjTvWx9gvS+/DvkQW5VvLBbykq/0AV5mYDLADDtIOaDVscQ3lGOcUsga1ODNSl14MSV63bE8VtHfG1HOc="
    ];
  };
  users.users.root.hashedPasswordFile = config.age.secrets."password-hash.txt".path;
  age.secrets."password-hash.txt".file = ./secrets/password-hash.txt.age;

  virtualisation.docker.enable = true;
  oden.persist.directories = [ "/var/lib/docker" ];

  programs.fish = {
    enable = true;
    shellAliases = {
      e = "nvim";
      lg = "lazygit";
    };
  };

  programs.lazygit = {
    enable = true;
    settings.git.autoFetch = false;
  };

  programs.nh = {
    enable = true;
    flake = "/home/mathias/oden";
  };

  environment.systemPackages = with pkgs; [
    neovim
    curl
    git
    (ffmpeg.override { withVpl = true; })
    (inputs.agenix.packages.${pkgs.system}.agenix)
    age-plugin-yubikey
    lm_sensors
    ghostty.terminfo
  ];

  age.identityPaths = [ "/nix/persist/etc/ssh/ssh_host_ed25519_key" ];

  services.openssh.enable = true;
  services.openssh.settings = {
    PasswordAuthentication = false;
    PermitRootLogin = "no";
  };

  security.sudo.wheelNeedsPassword = false;

  nix.registry.nixpkgs.flake = inputs.nixpkgs;
  nix.extraOptions = ''
    experimental-features = nix-command flakes
  '';

  # This option defines the first version of NixOS you have installed on this particular machine,
  # and is used to maintain compatibility with application data (e.g. databases) created on older NixOS versions.
  #
  # Most users should NEVER change this value after the initial install, for any reason,
  # even if you've upgraded your system to a new NixOS release.
  #
  # This value does NOT affect the Nixpkgs version your packages and OS are pulled from,
  # so changing it will NOT upgrade your system - see https://nixos.org/manual/nixos/stable/#sec-upgrading for how
  # to actually do that.
  #
  # This value being lower than the current NixOS release does NOT mean your system is
  # out of date, out of support, or vulnerable.
  #
  # Do NOT change this value unless you have manually inspected all the changes it would make to your configuration,
  # and migrated your data accordingly.
  #
  # For more information, see `man configuration.nix` or https://nixos.org/manual/nixos/stable/options#opt-system.stateVersion .
  system.stateVersion = "25.05"; # Did you read the comment?
}