[jcb@phaethon ~]$ cat /etc/nixos/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, ... }:

{
  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.efi.canTouchEfiVariables = true;

  networking.hostName = "phaethon"; # Define your hostname.
  networking.wireless.enable = true;  # Enables wireless via wpa_supplicant.

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

  # Set your time zone.
  time.timeZone = "US/Eastern";

  # Audio/Graphics
  hardware.pulseaudio.enable = true;

  hardware.opengl.driSupport32Bit = true;
  hardware.pulseaudio.support32Bit = true;

  # Fonts

  fonts.fonts = [ pkgs.google-fonts ];

  # List packages installed in system profile. To search by name, run:
  # $ nix-env -qaP | grep wget

  environment.systemPackages = with pkgs; [
    dmenu
    git
    ghc
    firefox
    feh
    rxvt_unicode
    stack
    wget
    vim
    xorg.xmodmap
    zathura

    haskellPackages.xmobar
    haskellPackages.hakyll
  ];

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


  # Enable the X11 windowing system.
  services.xserver = {
    enable = true;
    layout="us";

    windowManager.xmonad = {
      enable = true;
      enableContribAndExtras = true;
    };

    desktopManager= {
      default = "";
      xterm.enable = false;
    };

    displayManager.slim = {
      enable = true;
      defaultUser = "jcb";
    };
  };

  # Define a user account. Don't forget to set a password with ‘passwd’.
  users.extraUsers.jcb = {
    home = "/home/jcb";
    createHome = true;
    extraGroups = ["wheel" "audio" "networkmanager" "autologin"];
    isNormalUser = true;
    uid = 1000;
  };

  # 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 = "17.09"; # Did you read the comment?
  system.autoUpgrade.enable = true;

}
[jcb@phaethon ~]$ nix-info
system: "x86_64-linux", multi-user?: yes, version: nix-env (Nix) 1.11.15, channels(jcb): "", channels(root): "nixos-17.09.2378.af7e47921c4", nixpkgs: /nix/var/nix/profiles/per-user/root/channels/nixos/nixpkgs
[jcb@phaethon ~]$ nix-env -iA nixos.steam
replacing old ‘steam’
installing ‘steam’
[jcb@phaethon ~]$ steam
cp: cannot create regular file '/home/jcb/.local/share/Steam/bootstrap.tar.xz': Permission denied
Running Steam on nixos 17.09.2378.af7e47921c4 64-bit
STEAM_RUNTIME has been set by the user to: /steamrt
Pins potentially out-of-date, rebuilding...
mkdir: cannot create directory ‘/nix/store/3kj5smk5v25mw98jbx1gajv3whfrgxmf-steam-fhs/steamrt/pinned_libs_32’: Read-only file system
mkdir: cannot create directory ‘/nix/store/3kj5smk5v25mw98jbx1gajv3whfrgxmf-steam-fhs/steamrt/pinned_libs_64’: Read-only file system
/home/jcb/.local/share/Steam/steam.sh: line 874: /steamrt/run.sh: No such file or directory
Error: You are missing the following 32-bit libraries, and Steam may not run:
libgobject-2.0.so.0
libglib-2.0.so.0
libgio-2.0.so.0
libgtk-x11-2.0.so.0
libpulse.so.0
libgdk_pixbuf-2.0.so.0
libva.so.1
libbz2.so.1.0
libz.so.1
libvdpau.so.1
libva.so.1
libva-x11.so.1
Error:
You are missing the following 32-bit libraries, and Steam may not run:
libgobject-2.0.so.0
libglib-2.0.so.0
libgio-2.0.so.0
libgtk-x11-2.0.so.0
libpulse.so.0
libgdk_pixbuf-2.0.so.0
libva.so.1
libbz2.so.1.0
libz.so.1
libvdpau.so.1
libva.so.1
libva-x11.so.1
Press enter to continue:
Installing breakpad exception handler for appid(steam)/version(1513371133)
Installing breakpad exception handler for appid(steam)/version(1513371133)
Installing breakpad exception handler for appid(steam)/version(1513371133)
Failed to load steamui.so - dlerror(): libgobject-2.0.so.0: cannot open shared object file: No such file or directory
Installing breakpad exception handler for appid(steam)/version(1513371133)
Installing breakpad exception handler for appid(steam)/version(1513371133)
[2017-12-18 05:44:06] Startup - updater built Dec 15 2017 11:47:44
Looks like steam didn't shutdown cleanly, scheduling immediate update check
[2017-12-18 05:44:07] Checking for update on startup
[2017-12-18 05:44:07] Checking for available updates...
[2017-12-18 05:44:07] Download skipped: /client/steam_client_ubuntu12 version 1513371133, installed version 1513371133
[2017-12-18 05:44:07] Nothing to do
[2017-12-18 05:44:07] Verifying installation...
[2017-12-18 05:44:07] Performing checksum verification of executable files
[2017-12-18 05:44:07] Verification complete
[2017-12-18 05:44:10] Shutdown
[jcb@phaethon ~]$