My personal configuration.nix

configuration.nix

# configuration.nix for personal computer

{ config, pkgs, ... }:

{
  imports =
    [ # Include the results of the hardware scan.
      ./hardware-configuration.nix
    ];

  nixpkgs.config.allowUnfree = true;    # for steam, vscode

  # Use the systemd-boot EFI boot loader.
  boot.loader.grub.enable = true;
  boot.loader.grub.version = 2;
  boot.loader.grub.device = "/dev/sda";
  boot.loader.grub.useOSProber = true;
  # Add windows partition, fdisk -l to find partition location
  boot.loader.grub.extraEntries = ''
    menuentry "Windows OS" --class windows --class os {
      insmod ntfs
      search --no-floppy --set=root --fs-uuid 541076401076295E
      ntldr /bootmgr
    }
  '';

  networking.hostName = "jon-desktop";  # Define your hostname.
  networking.wireless.enable = true;    # Enables wireless support via wpa_supplicant.

  # Select internationalisation properties.
  # i18n = {
  #   consoleFont = "Lat2-Terminus16";
  #   consoleKeyMap = "us";
  #   defaultLocale = "en_US.UTF-8";
  # };

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

  # List packages installed in system profile. To search by name, run:
  # $ nix-env -qaP | grep wget
  environment = {
    systemPackages = with pkgs; [
      android-studio
      binutils
      cargo
      clang
      chromium
      cmake
      dbus
      direnv
      discord
      docker
      firefox
      gcc7
      ghc
      git
      gnumake
      htop
      jdk
      mono
      ntfs3g
      openal
      scrot
      SDL2
      spotify
      stack
      enlightenment.terminology
      tmux
      steam
      tree
      usbutils
      vlc
      vscode
      wget
      which
      xpdf
   ];
  };

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

  # 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;
  services.avahi.enable = true;
  services.avahi.publish.enable = true;
  services.avahi.publish.userServices = true;

  # Enable the X11 windowing system.
  services.xserver = {
    enable = true;
    layout = "us";
    videoDrivers = [ "nvidia" ];
    displayManager.lightdm.enable = true;
    windowManager.i3.enable = true;
    # have i3 open terminology instead of default xterm
    windowManager.i3.extraSessionCommands = "bindsym $mod+Return exec terminology";

    # solarized color scheme for xterm, not really used since terminology
    displayManager.sessionCommands =  ''
       xrdb "${pkgs.writeText  "xrdb.conf" ''
          *faceName:             xft:Dejavu Sans Mono for Powerline:size=14
          *utf8:                 2

          #define S_base03        #002b36
          #define S_base02        #073642
          #define S_base01        #586e75
          #define S_base00        #657b83
          #define S_base0         #839496
          #define S_base1         #93a1a1
          #define S_base2         #eee8d5
          #define S_base3         #fdf6e3

          *background:            S_base03
          *foreground:            S_base0
          *fadeColor:             S_base03
          *cursorColor:           S_base1
          *pointerColorBackground:S_base01
          *pointerColorForeground:S_base1

          #define S_yellow        #b58900
          #define S_orange        #cb4b16
          #define S_red           #dc322f
          #define S_magenta       #d33682
          #define S_violet        #6c71c4
          #define S_blue          #268bd2
          #define S_cyan          #2aa198
          #define S_green         #859900

          !! black dark/light
          *color0:                S_base02
          *color8:                S_base03

          !! red dark/light
          *color1:                S_red
          *color9:                S_orange

          !! green dark/light
          *color2:                S_green
          *color10:               S_base01

          !! yellow dark/light
          *color3:                S_yellow
          *color11:               S_base00

          !! blue dark/light
          *color4:                S_blue
          *color12:               S_base0

          !! magenta dark/light
          *color5:                S_magenta
          *color13:               S_violet

          !! cyan dark/light
          *color6:                S_cyan
          *color14:               S_base1

          !! white dark/light
          *color7:                S_base2
          *color15:               S_base3

       ''}"
    '';
  };

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

  # Enable the KDE Desktop Environment.

  # Define a user account. Don't forget to set a password with ‘passwd’.
  users.extraUsers.jon = {
    description = "Jon Ringer";
    home = "/home/jon/";
    isNormalUser = true;
    shell = pkgs.bash;

    extraGroups = ["wheel" "networkmanager" "docker"];
  };

  # for steam
  hardware.opengl.driSupport32Bit = true;

  # discord
  hardware.pulseaudio = {
    support32Bit = true;
    enable = true;
  };

  # Fix for some intel sound cards, otherwise quality is impaired
  sound.extraConfig = ''
    options snd-hda-intel vid=8086 pid=8ca snoop=0
  '';

  fonts = {
    enableFontDir = true;
    fonts = with pkgs; [
      corefonts
      dejavu_fonts
      freefont_ttf
      google-fonts
      inconsolata
      liberation_ttf
      ubuntu_font_family
    ];
  };

  virtualisation.docker.enable = true;

  # This value determines the NixOS release with which your system is to be
  # compatible, in order to avoid breaking some software such as database
  # servers. You should change this only after NixOS release notes say you
  # should.
  system.stateVersion = "19.03"; # Did you read the comment?
  system.autoUpgrade.enable = true;
}