add configuration.nix for nixos

configuration.nix

@@ -0,0 +1,127 @@
+# 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 = "athena"; # Define your hostname.
+  # Create entries for /etc/wpa_supplicant.conf by running `wpa_passphrase SSID PASSWORD`
+  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.wlp58s0.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";
+
+  # Select internationalisation properties.
+  i18n = {
+    consoleFont = "Fira Code";
+    consoleKeyMap = "us";
+    defaultLocale = "en_US.UTF-8";
+  };
+  # run the following command to swap escape and caps-lock keys, like a
+  # civilized person:
+  # setxkbmap -option caps:swapescape
+
+  # Set your time zone.
+  time.timeZone = "America/Los_Angeles";
+
+  # List packages installed in system profile. To search, run:
+  # $ nix search wget
+  environment.systemPackages = with pkgs; [
+    firefox
+    unzip
+    vim
+    wget
+    zathura
+    zsh
+  ];
+
+  fonts.fonts = with pkgs; [ fira-code ];
+
+  # 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 = [
+      631 # CUPs port for printing
+    ];
+    allowedUDPPorts = [
+      631
+    ];
+  };
+  # Or disable the firewall altogether.
+  # networking.firewall.enable = false;
+
+  # Enable CUPS to print documents.
+  services.printing = {
+    enable = true;
+    drivers = [ pkgs.hplip ];
+  };
+  # enable avahi for printer discovery
+  services.avahi = {
+    enable = true;
+    nssmdns = true;
+  };
+
+  # Enable sound.
+  sound.enable = true;
+  hardware.pulseaudio.enable = true;
+
+  # Enable the X11 windowing system.
+  services.xserver.enable = true;
+  services.xserver.layout = "us";
+  services.xserver.xkbOptions = "caps:swapescape";
+
+  # Enable touchpad support.
+  services.xserver.libinput.enable = true;
+
+  # Enable the KDE Desktop Environment.
+  services.xserver = {
+    displayManager.sddm.enable = true;
+    desktopManager.plasma5.enable = true;
+  };
+
+  # Define a user account. Don't forget to set a password with ‘passwd’.
+  users.users.haak = {
+    isNormalUser = true;
+    extraGroups = [
+      "wheel" # Enable ‘sudo’ for the user.
+      "networkmanager" # Allow the user to manage networks
+     ];
+  };
+
+  users.extraUsers.haak = {
+    shell = pkgs.zsh;
+  };
+
+  # 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 = "19.09"; # Did you read the comment?
+}
+