nixos/src/system/machines/server/system.nix

{ pkgs, lib, config, ... }:

{ system.stateVersion = "25.11";

  imports = [ ../../modules ];

  # Modules disabled for base install
  # modules = {
  #   system = {
  #     nginx.enable = true;
  #     forgejo.enable = true;
  #     bitcoin = {
  #       enable = true;
  #       electrum.enable = true;
  #     };
  #   };
  # };

  users.users = {
    ${config.user.name} = {
      isNormalUser = true;
      extraGroups = config.user.groups;
      openssh.authorizedKeys.keys = [
        "${config.user.keys.ssh.desktop}"
      ];
    };
  };

  nix = {
    channel.enable = false;
    package = pkgs.nixVersions.stable;
    extraOptions = "experimental-features = nix-command flakes";
    settings = {
      auto-optimise-store = true;
      trusted-users = [ "${config.user.name}" ];
    };
    gc = {
      automatic = true;
      dates = "weekly";
      options = "--delete-older-than 30d";
    };
  };

  boot.loader = {
    timeout = 3;
    grub = {
      enable = true;
      devices = [ "nodev" ];
      efiSupport = true;
      configurationLimit = 5;
      splashImage = null;
    };

    efi = {
      canTouchEfiVariables = true;
    };
  };

  environment.systemPackages = with pkgs; [
    wget
    git
    vim
    htop
  ];

  security.sudo = {
    wheelNeedsPassword = false;
    execWheelOnly = true;
  };

  time = {
    timeZone = "America/New_York";
    hardwareClockInLocalTime = true;
  };

  services.timesyncd = lib.mkDefault {
    enable = true;
    servers = [
      "0.pool.ntp.org"
      "1.pool.ntp.org"
      "2.pool.ntp.org"
      "3.pool.ntp.org"
    ];
  };

  i18n.defaultLocale = "en_US.UTF-8";

  console.font = "Lat2-Terminus16";

  networking = {
    hostName = "server";
    useDHCP = false;
    interfaces.eno1 = {
      ipv4.addresses = [{
        address = "192.168.0.154";
        prefixLength = 24;
      }];
    };
    defaultGateway = "192.168.0.1";
    nameservers = [ "1.1.1.1" "8.8.8.8" ];
    firewall = {
      enable = true;
      allowedTCPPorts = [ 22 ];
    };
  };

  services.fail2ban = {
    enable = true;
    maxretry = 5;
    bantime = "1h";
  };

  services.openssh = {
    enable = true;
    startWhenNeeded = true;
    settings = {
      X11Forwarding = false;
      PasswordAuthentication = false;
    };
  };
}