configuration.nix

# Edit this configuration file to define what should be installed on
# your system.  Help is available in the configuration.nix(5) man page
# and in the NixOS manual (accessible by running ‘nixos-help’).

{ config, pkgs, ... }:

let
  nvidia-offload = pkgs.writeShellScriptBin "nvidia-offload" ''
    export __NV_PRIME_RENDER_OFFLOAD=1
    export __NV_PRIME_RENDER_OFFLOAD_PROVIDER=NVIDIA-G0
    export __GLX_VENDOR_LIBRARY_NAME=nvidia
    export __VK_LAYER_NV_optimus=NVIDIA_only
    exec -a "$0" "$@"
  '';
in
{
  imports =
    [ # Include the results of the hardware scan.
      ./hardware-configuration.nix
    ];

  # Use the systemd-boot EFI boot loader.
  boot.loader.systemd-boot.enable = true;
  boot.loader.systemd-boot.editor = false;
  boot.loader.efi.canTouchEfiVariables = true;
  boot.supportedFilesystems = [ "ntfs" ];

  networking.hostName = "yuri-nixos"; # Define your hostname.
  networking.enableIPv6 = true;
  # Disabling ipv6 on the kernel level
  # boot.kernelParams = [ "ipv6.disable=1" ];
  # boot.kernel.sysctl."net.ipv6.conf.all.disable_ipv6" = true;
  networking.nameservers = [
    "2001:4860:4860::8888"
    "2001:4860:4860::8844"
    "8.8.8.8"
    "8.8.4.4"
  ];
  networking.networkmanager.enable = true;
  # networking.wireless.enable = true;  # Enables wireless support via wpa_supplicant.

  # The global useDHCP flag is deprecated, therefore explicitly set to false here.
  # Per-interface useDHCP will be mandatory in the future, so this generated config
  # replicates the default behaviour.
  networking.useDHCP = false;
  networking.interfaces.enp2s0.useDHCP = true;
  networking.interfaces.wlp3s0.useDHCP = true;

  # Configure network proxy if necessary
  # networking.proxy.default = "http://user:password@proxy:port/";
  # networking.proxy.noProxy = "127.0.0.1,localhost,internal.domain";

  environment.systemPackages = with pkgs; [
    emacs
    mu
    gitFull
    pciutils
    glxinfo
    nvidia-offload
    iotop
    e2fsprogs
    rnix-lsp
  ];

  console.useXkbConfig = true;
  # Select internationalisation properties.
  i18n.defaultLocale = "pt_BR.UTF-8";
  i18n.inputMethod = {
    enabled = "fcitx5";
    fcitx5.addons = [ pkgs.fcitx5-chinese-addons ];
  };

  # Set your time zone.
  time.timeZone = "America/Sao_Paulo";

  # Some programs need SUID wrappers, can be configured further or are
  # started in user sessions.
  # programs.mtr.enable = true;
  programs.gnupg.agent = {
    enable = true;
    enableSSHSupport = true;
  #   pinentryFlavor = "gnome3";
  };

  # List services that you want to enable:

  # Enable the OpenSSH daemon.
  # services.openssh.enable = true;

  # Open ports in the firewall.
  # networking.firewall.allowedTCPPorts = [ ... ];
  # networking.firewall.allowedUDPPorts = [ ... ];
  # Or disable the firewall altogether.
  # networking.firewall.enable = false;

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

  # Enable sound.
  sound.enable = true;
  hardware.pulseaudio.enable = true;
  hardware.pulseaudio.support32Bit = true;

  # Enable the X11 windowing system.
  services.xserver.enable = true;
  services.xserver.layout = "br";
  services.xserver.xkbOptions = "ctrl:nocaps";

  # Enable touchpad support.
  services.xserver.libinput.enable = true;

  # Enable the KDE Desktop Environment.
  services.xserver.displayManager.sddm.enable = true;
  services.xserver.displayManager.sddm.autoNumlock = true;
  services.xserver.desktopManager.plasma5.enable = true;

  # Define a user account. Don't forget to set a password with ‘passwd’.
  users.users.yuri = {
    isNormalUser = true;
    extraGroups = [
      "wheel"
      "networkmanager"
      "video"
      "audio"
      "vboxusers"
      "adbusers"
      "docker"
    ];
    shell = pkgs.zsh;
  };

  programs.zsh.enable = true;
  environment.pathsToLink = [ "/share/zsh" ];

  # This value determines the NixOS release from which the default
  # settings for stateful data, like file locations and database versions
  # on your system were taken. It‘s perfectly fine and recommended to leave
  # this value at the release version of the first install of this system.
  # Before changing this value read the documentation for this option
  # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
  system.stateVersion = "20.03"; # Did you read the comment?

  hardware.opengl.driSupport32Bit = true;
  hardware.opengl.enable = true;
  hardware.opengl.setLdLibraryPath = true;
  hardware.opengl.extraPackages = with pkgs; [
    intel-media-driver
    vaapiIntel
    vaapiVdpau
    libva
    libvdpau-va-gl
    (lib.hiPrio nvidia-vaapi-driver)
  ];
  hardware.opengl.extraPackages32 = with pkgs.pkgsi686Linux; [
    vaapiIntel
    vaapiVdpau
    libva
    libvdpau-va-gl
    (lib.hiPrio nvidia-vaapi-driver)
  ];
  hardware.nvidia.prime = {
    offload.enable = true;
    sync.allowExternalGpu = true;
    nvidiaBusId = "PCI:1:0:0";
    intelBusId = "PCI:0:2:0";
  };
  hardware.nvidia.powerManagement.enable = true;
  hardware.nvidia.modesetting.enable = true;
  boot.extraModprobeConfig = "options nvidia \"NVreg_DynamicPowerManagement=0x02\"\n";
  services.udev.extraRules = ''
  # Remove NVIDIA USB xHCI Host Controller devices, if present
  ACTION=="add", SUBSYSTEM=="pci", ATTR{vendor}=="0x10de", ATTR{class}=="0x0c0330", ATTR{remove}="1"

  # Remove NVIDIA USB Type-C UCSI devices, if present
  ACTION=="add", SUBSYSTEM=="pci", ATTR{vendor}=="0x10de", ATTR{class}=="0x0c8000", ATTR{remove}="1"

  # Remove NVIDIA Audio devices, if present
  ACTION=="add", SUBSYSTEM=="pci", ATTR{vendor}=="0x10de", ATTR{class}=="0x040300", ATTR{remove}="1"

  # Enable runtime PM for NVIDIA VGA/3D controller devices on driver bind
  ACTION=="bind", SUBSYSTEM=="pci", ATTR{vendor}=="0x10de", ATTR{class}=="0x030000", TEST=="power/control", ATTR{power/control}="auto"
  ACTION=="bind", SUBSYSTEM=="pci", ATTR{vendor}=="0x10de", ATTR{class}=="0x030200", TEST=="power/control", ATTR{power/control}="auto"

  # Disable runtime PM for NVIDIA VGA/3D controller devices on driver unbind
  ACTION=="unbind", SUBSYSTEM=="pci", ATTR{vendor}=="0x10de", ATTR{class}=="0x030000", TEST=="power/control", ATTR{power/control}="on"
  ACTION=="unbind", SUBSYSTEM=="pci", ATTR{vendor}=="0x10de", ATTR{class}=="0x030200", TEST=="power/control", ATTR{power/control}="on"
  '';


  hardware.nvidia.package = config.boot.kernelPackages.nvidiaPackages.stable;
  services.xserver.videoDrivers = [ "nvidia" ];

  nix.settings.auto-optimise-store = true;
  nix.settings.trusted-public-keys = [
    "hydra.iohk.io:f/Ea+s+dFdN+3Y/G+FDgSq+a5NEWhJGzdjvKNGv0/EQ="
  ];
  nix.settings.substituters = [
    "https://cache.iog.io"
  ];

  swapDevices = [
    {
      device = "/swapfile";
      priority = 0;
      size = 16384;
    }
  ];

  programs.steam.enable = true;
  programs.kdeconnect.enable = true;

  nixpkgs.config.firefox.enablePlasmaBrowserIntegration = true;

  virtualisation.docker.enable = true;

  hardware.bluetooth.enable = true;
  systemd.services.bluetooth.serviceConfig.ExecStart = [
    ""
    "${pkgs.bluez}/libexec/bluetooth/bluetoothd -f /etc/bluetooth/main.conf"
  ];

  hardware.cpu.intel.updateMicrocode = true;

  programs.adb.enable = true;
  nixpkgs.config.android_sdk.accept_license = true;

  nixpkgs.config.allowUnfree = true;

  fonts = {
    enableDefaultFonts = true;
    fonts = with pkgs; [
      ubuntu_font_family
      wqy_microhei
      wqy_zenhei
      ttf-tw-moe
      anonymousPro
      fira-code
      fira-code-symbols
    ];
  };

  nix = {
    package = pkgs.nixVersions.stable;
    extraOptions = ''
    experimental-features = nix-command flakes
    '';
  };
}