20231203_configuration.nix

# Things that you have to do manually
# if you are re-installing or Gnome settings lost
# sign in to The Good Drive in Gnome file manager to mount that drive
# sing in to Google in Gnome - Online accounts
# use screen grabs from Google, Proton, Amazon, Bitwarden, in Authy and
# gnome authenticator to re-establish OTP provision
# sign into firefox
# probably more.....
# before you start logging into loads of site in firefox....
# set in firefox - settings - privacy & security - under use sustom settings for history
# untick "clear history when firefox closes" and this should keep you logged into e.g. fosstodon (which is where I tested it)

# 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’).

# 2023-11-27 ,lib added for parental controls
{ config, pkgs, ... }:
#{ config, pkgs, lib, ...}:

{
  imports =
    [ # Include the results of the hardware scan.
      ./hardware-configuration.nix
      # 2023-11-27 from https://github.com/jazmit/nixos-parental-controls/blob/main/nixos-parental-controls.nix
      #./nixos-parental-controls.nix
    ];

  # Bootloader.
  boot.loader.systemd-boot.enable = true;
  boot.loader.efi.canTouchEfiVariables = 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";

  # Enable networking
  networking.networkmanager.enable = true;

  # Set your time zone.
  time.timeZone = "Europe/Berlin";

  # Select internationalisation properties.
  i18n.defaultLocale = "en_GB.UTF-8";

  i18n.extraLocaleSettings = {
    LC_ADDRESS = "de_DE.UTF-8";
    LC_IDENTIFICATION = "de_DE.UTF-8";
    LC_MEASUREMENT = "de_DE.UTF-8";
    LC_MONETARY = "de_DE.UTF-8";
    LC_NAME = "de_DE.UTF-8";
    LC_NUMERIC = "de_DE.UTF-8";
    LC_PAPER = "de_DE.UTF-8";
    LC_TELEPHONE = "de_DE.UTF-8";
    LC_TIME = "de_DE.UTF-8";
  };

  # Enable the X11 windowing system.
  services.xserver.enable = true;

  # Enable the GNOME Desktop Environment.
  services.xserver.displayManager.gdm.enable = true;
  services.xserver.desktopManager.gnome.enable = true;

  # Configure keymap in X11
  services.xserver = {
    layout = "de";
    xkbVariant = "";
  };

  # Configure console keymap
  console.keyMap = "de";

  # Enable CUPS to print documents.
  services.printing.enable = true;
  # see https://nixos.wiki/wiki/Printing
  services.printing.drivers = [pkgs.brlaser];
  services.avahi = {
  enable = true;
  nssmdns = true;
  openFirewall = true;
  };

  # Enable sound with pipewire.
  sound.enable = true;
  hardware.pulseaudio.enable = false;
  security.rtkit.enable = true;
  services.pipewire = {
    enable = true;
    alsa.enable = true;
    alsa.support32Bit = true;
    pulse.enable = true;
    # If you want to use JACK applications, uncomment this
    #jack.enable = true;

    # use the example session manager (no others are packaged yet so this is enabled by default,
    # no need to redefine it in your config for now)
    #media-session.enable = true;
  };

  # Enable touchpad support (enabled default in most desktopManager).
  # services.xserver.libinput.enable = true;

  # Define a user account. Don't forget to set a password with ‘passwd’.
  users.users.adingbatponder = {
    isNormalUser = true;
    description = "adingbatponder";
    extraGroups = [ "networkmanager" "wheel" ];
    packages = with pkgs; [
      firefox
    #  thunderbird
    ];
  };

  # 2023-11-27 define a child1 account for parental controls
  users.users.child1 = {
    isNormalUser = true;
    description = "child1";
    extraGroups = [ "networkmanager"]; # removed "wheel" as compared with adingbatponder
    packages = with pkgs; [
      firefox
    #  thunderbird
    ];
  };


  # Allow unfree packages
  nixpkgs.config.allowUnfree = 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
  # bitwarden as GUI crashed in some generatons.
  # from: https://discourse.nixos.org/t/how-to-get-back-to-a-kernel-version-where-all-packages-work-as-they-used-to/36020/2
  # Try running the bitwarden app from the terminal with the command
  # bitwarden --disable-gpu
  # Alternatively try running it from the terminal with
  # env WAYLAND_DISPLAY= bitwarden
     bitwarden #for problems see above
     protonvpn-gui
   # authy failed to work so intalled google-authenticator even though apparently it is not so fab
     authy
   # google-authenticator runs from command line> google-authenticator
     google-authenticator
   # Gnome authenticator
     authenticator
     gnome.gnome-keyring
     protonmail-bridge
     threema-desktop
     whatsapp-for-linux
  #  following removed because it seem not to result in any icon
  #  home-assistant-component-tests.govee_ble
     gimp
     vscode
     git
     thunderbird
  #  firefox stopped working 23-11-23 so installed fork librewolf on recommendation of Project Insanity@pi_crew@chaos.social
     librewolf
     firefox
  # brave installed becaus firefox crashed for certain security setting pages in bitwarden.com
     brave
     gnome.gnome-tweaks
  #  element-desktop does not launch any sensible gui to tried element-web instead
  #  element-desktop
     element-web
     skypeforlinux
     teams-for-linux
  # teams commented out because creates errors
  #   teams
  # pdf stuff
     # recommended on https://opensource.com/alternatives/adobe-acrobat
     evince
     # just a random simple one
     mupdf
  # command line stuff follows:
     usbutils
     protonvpn-cli
  # end of command line stuff.
  # modem for sim lte
     modemmanager
     modem-manager-gui
  # for testing script
  #   screen
  #   irssi
     etcher #to make OS images
  #   python39 # required by default.nix in /etc/nixos/per-user-blocky
     emacs # GNU emacs - if you can't beat them, join them:  https://www.gnu.org/software/emacs/
     vlc  #video stuff
     bottom # system monitor run from command line:  btm
     audacity # sound editor with graphical UI
     nextcloud-client # nextcloud https://nextcloud.com/
  ];

    nixpkgs.config.permittedInsecurePackages = [
                # 27-10-2023 to make error for bitwarden pass following recommendation from @Janik@chaos.social
		"electron-24.8.6"

		# 18-11-2023 for teams to work
       		# "teams-1.5.00.23861"
                "electron-12.2.3"  # for etcher to work
                "electron-19.1.9"   # for upgrade to 23.11 to work see ** note 03-12-2023
              ];

  systemd.user.services.startprotonvpn = {
  # startprotonvpn is the arbitrary name I have given this service
  description = "makes proton vpn start when user logs in after machine has just been booted";
  script = ''
    ${pkgs.protonvpn-cli}/bin/protonvpn-cli r
  '';
  # to run protonvpn from the command line the package protonvpn-cli was listed above in the environment.systempackages
  # the option r uses the previously used protonvpn connection as set by user manually in the GUI or command line
  # the so called killswitch setting (if on it cuts internet access if the vpn connection is lost or otherwise not active) in the GUI is on in this case - not sure that matters for this to work
  wantedBy = [ "graphical-session.target" ];
  partOf = [ "graphical-session.target" ];
};
  # if running the the following command at the command line:
  # systemctl status startprotonvpn.service
  # the shell returns the following message:
  # Unit startprotonvpn.service could not be found.
  # so testing the above so-called service by eliminating error messages when using the above systemctl command was/is a waste of time in this case


  # 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;

  # 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 = "23.05"; # Did you read the comment?


#  # this is an attempt at parental conrols
#  # 27-11-23
#  # from https://github.com/jazmit/nixos-parental-controls/blob/main/nixos-parental-controls.nix
#  # made in /ect/nixos the directory for per-user-blocky
#  # put the module in imports above
#  # from https://github.com/jazmit/nixos-parental-controls/tree/main
#  # using the link above but puttin import elsewhere and adding lib as above
#services.parental-controls = {
#    # set to false because not working
#    enable = true;
#    default = {
#     mode = "blacklist";
#     block-ads = true;
#    };
#    # added adingbatponder here
#    per-user = {
#      adingbatponder = {
#        mode = "blacklist";
#        blacklist = [
#          "/bbc/"
#        ];
#      };
#    #per-user = {
#      child1 = {
#        mode = "whitelist";
#        whitelist = [
#          "/bbc/"
#          "/numbots/"
#          "/ttrockstars/"
#         "/lichess/"
#         "/typingclub.com/"
#         "/cloudflare/"
#         "/googleapis/"
#         "/gstatic.com/"
#         "/prismatic.io/"
#          "/hs-scripts.com/"
 #       ];
 #     };
 #    # child2 = {
 #    #   mode = "blacklist";
 #    #   block-adult = true;
 #    #   blacklist = [
 #    #       "/youtube/"
 #    #   ];
 #    # };
 #   };
 # };


# version control
# as suggested by Thomas Woolford
# @twoolie@ioc.exchange
# he wrote on 27-11-23 in fosstodon
# This will create a folder in /etc named nixos-built-with that will be filled
# with the contents of /etc/nixos at the time that
# the current generation was built.
# https://ioc.exchange/@twoolie/111501690072498877
# testing shows this overwrites the previous one each time
 environment.etc."nixos-built-with".source = ./.;
}  #inserted to see if error goes away
#** note 03-12-2023
#3-12-2023 for upgrade to 23.11
# as per
#sudo nix-channel --add https://channels.nixos.org/nixos-23.11 nixos
#sudo nixos-rebuild boot --upgrade
## You probably get some errors and warnings here that you need to take care
## of, do so and repeat until the above command succeeds
#sudo shutdown -r now
# end ** note 03-12-2023

# from
# https://discourse.nixos.org/t/how-to-get-back-to-a-kernel-version-where-all-packages-work-as-they-used-to/36020/6
#When you rebuild your system after changing configuration.nix, the result depends both on the contents of configuration.nix and on the current value of the nixos channel for root.
#That channel is updated if you run nixos-rebuild with the --upgrade option, and not otherwise.
#So the reason you keep getting the newer kernel is because the newer value of the nixos channel specifies a newer kernel version.
#
#If you want to build the current configuration.nix against an older value of the nixos channel, you can rollback the channel itself using nix-channel --rollback, optionally specifying a channel generation number.
#You can see the channel generations with
#  ls /nix/var/nix/profiles/per-user/root
#—each entry that looks like channels-*-link indicates a generation number.
#If you rollback your channel (do this as root!) to a sufficiently old generation, and then run nixos-rebuild without --upgrade, you’ll get all the package versions (including the kernel) associated with the channel at the time of that channel generation,
#configured with the current contents of configuration.nix. No restoring anything from backup.