{
  outputs,
  pkgs,
  username,
  ...
}: {
  imports = [
    ./hardware-configuration.nix
    ../../modules/nixos/headscale.nix
  ];

  nixpkgs = {
    overlays = [
      outputs.overlays.additions
      outputs.overlays.modifications
      outputs.overlays.unstable-packages
      outputs.overlays.nur
    ];

    config = {
      allowUnfree = true;
      joypixels.acceptLicense = true;
    };
  };

  nix = {
    settings = {
      experimental-features = "nix-command flakes";
      auto-optimise-store = true;
    };
  };

  boot = {
    kernelPackages = pkgs.linuxPackages_zen;
    initrd.systemd.enable = true;

    loader = {
      grub.device = "/dev/sda";
      timeout = 1;
    };
  };

  networking = {
    hostName = "controller";
  };

  security = {
    sudo.wheelNeedsPassword = false;
  };

  programs = {
    zsh.enable = true;
    nix-ld.enable = true;
    dconf.enable = true;
  };

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

  users = {
    defaultUserShell = pkgs.zsh;
    users.${username} = {
      initialPassword = "${username}";
      isNormalUser = true;
      extraGroups = ["networkmanager" "wheel" "storage"];
      openssh.authorizedKeys.keys = [
        ''ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIL+OzPUe2ECPC929DqpkM39tl/vdNAXfsRnmrGfR+X3D 0xtux@pm.me''
      ];
    };
  };

  environment.systemPackages = with pkgs; [
  ];

  fonts.packages = with pkgs; [(nerdfonts.override {fonts = ["FiraCode" "JetBrainsMono"];})];

  system.stateVersion = "23.11";
}