initial system config

configuration.nix

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+# 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
+      ./users.nix
+    ];
+
+  boot.loader = { 
+    efi = { 
+      canTouchEfiVariables = true;
+    };
+    grub = {
+      enable = true;
+      efiSupport = true;
+      device = "nodev";
+      configurationLimit = 5;
+    };
+  };
+
+  networking.hostName = "nixos-vm"; # Define your hostname.
+  # Pick only one of the below networking options.
+  # networking.wireless.enable = true;  # Enables wireless support via wpa_supplicant.
+  networking.networkmanager.enable = true;  # Easiest to use and most distros use this by default.
+
+  # Set your time zone.
+  time.timeZone = "Europe/Berlin";
+
+  # Enable NTP
+  services.timesyncd.enable = 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.defaultLocale = "en_US.UTF-8";
+  console = {
+    # font = "Lat2-Terminus16";
+    keyMap = "de-latin1-nodeadkeys";
+    # useXkbConfig = true; # use xkbOptions in tty.
+  };
+
+  # Enable the X11 windowing system.
+  # services.xserver.enable = true;
+
+  # Configure keymap in X11
+  # services.xserver.layout = "us";
+  # services.xserver.xkbOptions = {
+  #   "eurosign:e";
+  #   "caps:escape" # map caps to escape.
+  # };
+
+  # Enable CUPS to print documents.
+  # services.printing.enable = true;
+
+  # Enable sound.
+  # sound.enable = true;
+  # hardware.pulseaudio.enable = true;
+
+  # Enable touchpad support (enabled default in most desktopManager).
+  # services.xserver.libinput.enable = true;
+
+  # List packages installed in system profile. To search, run:
+  # $ nix search wget
+  environment.systemPackages = with pkgs; [
+    vim # Do not forget to add an editor to edit configuration.nix! The Nano editor is also installed by default.
+    wget
+    git
+  ];
+
+  # 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;
+
+  # Copy the NixOS configuration file and link it from the resulting system
+  # (/run/current-system/configuration.nix). This is useful in case you
+  # accidentally delete configuration.nix.
+  system.copySystemConfiguration = true;
+
+  # 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 = "22.05"; # Did you read the comment?
+
+  nix = {
+    package = pkgs.nixFlakes;
+    extraOptions = "experimental-features = nix-command flakes";
+  };
+}
+

hardware-configuration.nix

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+# Do not modify this file!  It was generated by ‘nixos-generate-config’
+# and may be overwritten by future invocations.  Please make changes
+# to /etc/nixos/configuration.nix instead.
+{ config, lib, pkgs, modulesPath, ... }:
+
+{
+  imports = [ ];
+
+  boot.initrd.availableKernelModules = [ "ata_piix" "ohci_pci" "sd_mod" "sr_mod" ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelModules = [ "kvm-intel" ];
+  boot.extraModulePackages = [ ];
+
+  fileSystems."/" =
+    { device = "/dev/disk/by-uuid/767db5cd-638f-42c4-8aa5-9ac8f1f78fcd";
+      fsType = "ext4";
+    };
+
+  fileSystems."/boot" =
+    { device = "/dev/disk/by-uuid/FB68-087F";
+      fsType = "vfat";
+    };
+
+  swapDevices =
+    [ { device = "/dev/disk/by-uuid/7bec9678-6f13-44d7-bc46-c0426c17a36c"; }
+    ];
+
+  # Enables DHCP on each ethernet and wireless interface. In case of scripted networking
+  # (the default) this is the recommended approach. When using systemd-networkd it's
+  # still possible to use this option, but it's recommended to use it in conjunction
+  # with explicit per-interface declarations with `networking.interfaces.<interface>.useDHCP`.
+  networking.useDHCP = lib.mkDefault true;
+  # networking.interfaces.enp0s3.useDHCP = lib.mkDefault true;
+
+  hardware.cpu.intel.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
+  virtualisation.virtualbox.guest.enable = true;
+}

users.nix

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+{ config, pkgs, ... }:
+
+{
+  users = {
+    mutableUsers = false;
+
+    users.mandlm = {
+      isNormalUser = true;
+      uid = 1000;
+      home = "/home/mandlm";
+      shell= pkgs.zsh;
+      extraGroups = [ "wheel" "networkmanager" ];
+      hashedPassword = "$6$wV6dzYlgke5tN01q$rCMP/Hquss/1BgKarnZUkmejpBtjEcwmlUhbhAAmjc2Pwdbztp3yr/bD/LJ63XoZ0oD7yhTMqbECDdMqNKKDe/";
+      openssh.authorizedKeys.keys = [ "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDI6NmrDRvDtUkeJM8cE7DvZKtiNBKUQ+30MhOX4BwWPzN2b+kM+TjZ5Dtiln+Zbk/QToCDFir+CIKHshpgtCPAvVkjmldeqqflKKUkShTjWfF2zRwEql58DGaTuJqPgMhS9ZVDI5OL6VoecSxWOLSKCqGu4R+yJJnTRBSaoHNzBsq81psYk/yty+QofbWsJktjJc2r3JSuM8UUVkCVqcYS9wd/3vW3NbkqOL7KJhktsJa6sBZfTs1Yr1lpKqJou24CE1TGwTxiZ7SASjiRzbtK7J9jJBCjZ80hgEp/Cop0caaVw7aedo6xRC26X2TSm7ljAdvcPew9m6ayxuLaV9Nz mandlm@apache" ];
+    };
+  };
+}