{
  inputs,
  pkgs,
  ...
}:
{
  imports = [
    inputs.home-manager.nixosModules.home-manager
  ];

  nix.settings = {
    # Enable flakes and new 'nix' command
    experimental-features = "nix-command flakes";
    # Deduplicate and optimize nix store
    auto-optimise-store = true;
    # Allow me to use cachix
    trusted-users = [
      "root"
      "kalle"
    ];
  };

  nixpkgs.config.allowUnfree = true;

  home-manager.useGlobalPkgs = true;
  home-manager.useUserPackages = true;

  # Select internationalisation properties.
  i18n.defaultLocale = "en_US.UTF-8";

  console = {
    font = "Lat2-Terminus16";
    useXkbConfig = true; # use xkbOptions in tty.
  };

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

  # Enable sound.
  security.rtkit.enable = true;
  services.pipewire = {
    enable = true;
    alsa.enable = true;
    alsa.support32Bit = true;
    pulse.enable = true;
    jack.enable = true;
  };

  environment.systemPackages = with pkgs; [
    xdg-user-dirs
  ];

  fonts = {
    enableDefaultPackages = true;
    packages = with pkgs; [
      noto-fonts
      noto-fonts-cjk-sans
      noto-fonts-color-emoji

      fira-code
      fira-code-symbols

      nerd-fonts.symbols-only
    ];

    fontconfig = {
      defaultFonts = {
        serif = [
          "Noto Serif"
          "Symbols Nerd Font"
        ];
        sansSerif = [
          "Noto Sans"
          "Symbols Nerd Font"
        ];
        monospace = [
          "Fira Code"
          "Symbols Nerd Font Mono"
        ];
      };
    };
  };

  users.users.kalle = {
    isNormalUser = true;
    group = "kalle";
    extraGroups = [
      "wheel"
    ];
  };

  users.groups.kalle.gid = 1000;

  home-manager.users.kalle = {
    home = {
      username = "kalle";
      homeDirectory = "/home/kalle";
      sessionVariables = {
        EDITOR = "nvim";
      };
    };

    programs.home-manager.enable = true;

    # TODO: Make this be based on the system wide style
    gtk = {
      enable = true;
      theme = {
        name = "Adwaita-dark";
        package = pkgs.gnome-themes-extra;
      };
      iconTheme = {
        name = "breeze-dark";
        package = pkgs.kdePackages.breeze-icons;
      };
      cursorTheme = {
        name = "breeze_cursors";
        package = pkgs.libsForQt5.breeze-qt5;
      };
    };
    qt = {
      enable = true;
      style.name = "breeze";
    };
    dconf = {
      enable = true;
      settings = {
        "org/gnome/desktop/interface" = {
          color-scheme = "prefer-dark";
        };
      };
    };
  };

  services.openssh.enable = true;
}