configuration.nix for Haskell development

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
  unstableTarball =
    fetchTarball
      https://github.com/NixOS/nixpkgs-channels/archive/nixos-unstable.tar.gz;
  all-hies = import (fetchTarball "https://github.com/infinisil/all-hies/tarball/master") {};
in
{
  imports =
    [ # Include the results of the hardware scan.
      ./hardware-configuration.nix
    ];

  nixpkgs.config = {
    allowUnfree = true;
    oraclejdk.accept_license = true;
    packageOverrides = pkgs: {
      unstable = import unstableTarball {
        config = config.nixpkgs.config;
      };
    };
  };

  # Use the GRUB 2 boot loader.
  boot.loader.grub.enable = true;
  boot.loader.grub.version = 2;
  boot.loader.grub.device = "/dev/sdb";
  boot.loader.grub.useOSProber = true;
  boot.loader.grub.extraConfig = ''
    if keystatus --shift ; then
      set timeout=-1
    else
      set timeout=0
    fi
  '';

  # boot.loader.grub.efiSupport = true;
  # boot.loader.grub.efiInstallAsRemovable = true;
  # boot.loader.efi.efiSysMountPoint = "/boot/efi";
  # Define on which hard drive you want to install Grub.
  # boot.loader.grub.device = "/dev/sda"; # or "nodev" for efi only

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

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

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

  # Set your time zone.
  time.timeZone = "Europe/Bucharest";
  
  virtualisation.virtualbox.host.enable = true;
  
  # List packages installed in system profile. To search, run:
  # $ nix search wget
  environment.systemPackages = with pkgs; [
    gnumake
    autoconf
    xdotool # used by Keepass to paste stuff
    unixtools.quota # used by the disk report widget
    htop
    jdiskreport
    flameshot
    unstable.oraclejre
    peek # GIF recorder
    gparted
    hardinfo
    geekbench
    git
    maven
    ark
    kate
    keepass
    unstable.qbittorrent
    unstable.dropbox
    unstable.google-chrome
    unstable.firefox
    anki
    libreoffice
    meld
    nixui
    nox
    nix-info
    nix-index
    appimage-run
    dpkg
    openraPackages.mods.raclassic
    python2Full
    python.pkgs.pip
    uget
    aria
    virtualbox
    
    unstable.discord
    unstable.slack
    unstable.gitter
    unstable.hexchat
    unstable.riot-web
    zoom-us
    obs-studio
    unstable.wine
    unstable.winetricks
    # unstable.playonlinux
    unstable.steam
    # (unstable.steam.override { extraPkgs = pkgs: [ mono gtk3 gtk3-x11 libgdiplus zlib ]; nativeOnly = true; withPrimus = true; withJava = true; }).run

    unstable.vscode
    unstable.atom
    unstable.emacs
    neovim
    vim
    jetbrains.idea-community
    sublime3

    haskell.compiler.ghc865
    haskellPackages.cabal-install
    haskellPackages.stack
    haskellPackages.ghcid
    unstable.haskellPackages.cabal2nix
    haskellPackages.stack2nix
    (all-hies.selection { selector = p: { inherit (p) ghc865; }; })
  ];

  # 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; };

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

  # Enable the X11 windowing system.
  services.xserver.enable = true;
  services.xserver.layout = "us";
  services.xserver.xkbOptions = "eurosign:e";

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

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

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

  nix.trustedUsers = [ "root" "neo" ];
  
  # 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?

}