{ pkgs
, ...
}:
{

  imports = [
    ../common/default.nix
    ../common/keychron.nix
    ../common/network.nix
    ../common/nvidia/default.nix
    ./hardware-configuration.nix
  ];

  boot = {
    loader.systemd-boot.enable = true;
    loader.efi.canTouchEfiVariables = true;
  };
  environment.etc."libwacom/intuos4-4x6.tablet".text = ''
    # Wacom
    # Intuos4 Small
    [Device]
    Name=Wacom Intuos4 4x6
    DeviceMatch=usb:056a:00b8
    Class=Intuos4
    Width=6
    Height=4
    Layout=intuos4-4x6.svg
    IntegratedIn=
    Styli=0x802;0x804;0x806;0x80a;0x80c;0x902;0x90a;0x100802;0x100804;0x10080a;0x10080c;0x100902;0x10090a;0x120802;0x140802;0x14080a;0x160802;0x16080a;

    [Features]
    Reversible=true
    Stylus=true
    Ring=true
    Buttons=7
    StatusLEDs=Ring

    [Buttons]
    Left=A;B;C;D;E;F;G

    Ring=A
    RingNumModes=4
  '';
  environment = {
    systemPackages = with pkgs; [
      act
      btrfs-progs
      cudatoolkit
      networkmanagerapplet
      libwacom
      wacomtablet
      gnome-tweaks
      gnome-session
    ];

    variables = {
      NIXOS_HOST = "nixstation";
      NIXOS_DE = "wayland";
    };

    sessionVariables = {
      NIXOS_OZONE_WL = "1";
      XDG_SESSION_TYPE = "wayland";
      QT_QPA_PLATFORM = "wayland";
      GDK_BACKEND = "wayland";
    };
  };
  hardware = {
    sane.enable = true;
    graphics.enable = true;
  };

  i18n.defaultLocale = "en_US.UTF-8";
  i18n.extraLocaleSettings = {
    LC_ADDRESS = "pt_BR.UTF-8";
    LC_IDENTIFICATION = "pt_BR.UTF-8";
    LC_MEASUREMENT = "pt_BR.UTF-8";
    LC_MONETARY = "pt_BR.UTF-8";
    LC_NAME = "pt_BR.UTF-8";
    LC_NUMERIC = "pt_BR.UTF-8";
    LC_PAPER = "pt_BR.UTF-8";
    LC_TELEPHONE = "pt_BR.UTF-8";
    LC_TIME = "pt_BR.UTF-8";
  };

  networking.firewall = {
    enable = true;
    allowPing = true;
    allowedTCPPorts = [
      11434
      8888
      8000
      8080
    ];
  };

  nix = {
    settings = {
      auto-optimise-store = true;
    };
  };

  programs = {
    # steam = {
    #   enable = true;
    #   remotePlay.openFirewall = true;
    #   dedicatedServer.openFirewall = true;
    #   localNetworkGameTransfers.openFirewall = true;

    # };
    dconf.enable = true;
    virt-manager.enable = true;
  };
  security.pam.services.gdm.enableGnomeKeyring = true;
  security.rtkit.enable = true;
  services = {
    xserver = {
      enable = true;
      desktopManager.gnome.enable = true;
      displayManager.gdm = {
        enable = true;
        wayland = true;
      };
      displayManager.defaultSession = "gnome";
    };
    
    udev.packages = [ pkgs.libwacom ];
    avahi = {
      enable = true;
      nssmdns4 = true;
      openFirewall = true;
      extraConfig = ''
        [server]
        allow-interfaces=wlp7s0
      '';
    };

    earlyoom = {
      enable = true;
      freeMemThreshold = 5;
      freeSwapThreshold = 10;
    };

    flatpak.enable = true;

    pipewire = {
      enable = true;
      alsa.enable = true;
      alsa.support32Bit = true;
      pulse.enable = true;
    };
  };

  systemd = {
    services."getty@tty1".enable = false;
    services."autovt@tty1".enable = false;
  };

  systemd.timers.btrfs-scrub = {
    description = "Run Btrfs Scrub Daily";
    wantedBy = [ "timers.target" ];
    timerConfig = {
      OnCalendar = "daily";
      Persistent = true;
    };
  };

  systemd.services = {
    btrfs-scrub = {
      description = "Daily Btrfs Scrub";
      serviceConfig = {
        Type = "oneshot";
        Nice = 19;
        IOSchedulingClass = "idle";
        ExecStart = "${pkgs.btrfs-progs}/bin/btrfs scrub start -n 2 -B / && ${pkgs.btrfs-progs}/bin/btrfs scrub start -n 2 -B /mnt/hdd0";
      };
    };
  };
  system.stateVersion = "25.11"; # keep it!
  time.timeZone = "America/Sao_Paulo";
  virtualisation = {
    vmware.host.enable = false;
    spiceUSBRedirection.enable = true;
    libvirtd = {
      enable = true;
      qemu.ovmf.enable = true;
      qemu.package = pkgs.qemu_full;
    };

  };

  zramSwap = {
    enable = true;
    memoryPercent = 25;
    algorithm = "zstd";
  };
}