xrandr -q

xrandr --output DisplayPort-3 --auto --primary --output HDMI-A-4 --auto --left-of DisplayPort-3

xrandr --output DisplayPort-3 --auto --primary --output HDMI-A-4 --off

— Me@2025-04-20 02:19:35 PM

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2025.04.20 Sunday (c) All rights reserved by ACHK

1. Assuming you have already installed the Nix package manager on Ubuntu 22.04 or later, type the following command into the terminal:

nix-env -iA nixpkgs.zsh-autocomplete  

2. Open the Zsh configuration file:

~/.zshrc

Add the following lines to it:

source ~/.nix-profile/share/zsh-autocomplete/zsh-autocomplete.plugin.zsh
 
bindkey -M menuselect '\e' undo

— Me@2024-01-23 08:52:05 AM

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2024.08.01 Thursday (c) All rights reserved by ACHK

Zsh, 4

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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
    ];

  # Bootloader.
  boot.loader.grub.enable = true;
  boot.loader.grub.device = "/dev/sda";
  boot.loader.grub.useOSProber = true;

  networking.hostName = "hi"; # Define your hostname.
  # networking.wireless.enable = true;  # Enables wireless support via wpa_supplicant.
  networking.wireless.enable = false;
  hardware.bluetooth.enable = false;

  # 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 = "Australia/Perth";

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

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

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

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

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

  # Enable CUPS to print documents.
  services.printing.enable = 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.hi = {
    isNormalUser = true;
    description = "hi";
    extraGroups = [ "networkmanager" "wheel" "vboxsf" "vboxusers"];
    shell = pkgs.zsh;
    packages = with pkgs; [
      firefox
      kate
      thunderbird
      chromium
    ];
  };

  # Allow unfree packages
  nixpkgs.config.allowUnfree = true;

  # virtualisation.virtualbox.guest.enable = true;
  # virtualisation.virtualbox.guest.x11 = true;
  # virtualisation.virtualbox.host.enable = true;
  # virtualisation.virtualbox.host.enableExtensionPack = 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
    zsh
    zsh-autosuggestions
    zsh-syntax-highlighting
    zsh-powerlevel10k
    meslo-lgs-nf

    oh-my-zsh
    corefonts
    fira
    powerline-fonts
    ubuntu_font_family
    unifont

    p7zip
    unrar
    unzip

    util-linux
    meld

    home-manager

    git
    git-cola
    github-desktop

    emacs29

    autokey
    virtualbox
    librewolf
    palemoon-bin
    ventoy-full

    flatpak
    steam
    libsForQt5.falkon
    libsForQt5.korganizer
    krusader

    psensor
    playonlinux
    protonvpn-gui

    # vmware-workstation

    quickemu
    quickgui

    neofetch
  ];

  # 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;
  # };

  programs.zsh = {
    enable = true;
    enableCompletion = true;
    autosuggestions.enable = true;
    interactiveShellInit = ''
      source /run/current-system/sw/share/zsh-syntax-highlighting/zsh-syntax-highlighting.zsh
      source /run/current-system/sw/share/zsh-autosuggestions/zsh-autosuggestions.zsh
      source /run/current-system/sw/share/zsh-powerlevel10k/powerlevel10k.zsh-theme
    '';
  };

  fonts = {
    fontDir.enable = true;
    packages = with pkgs; [
      corefonts
      fira
      powerline-fonts
      ubuntu_font_family
      unifont
    ];
  };

  # List services that you want to enable:

   systemd.services.rfkill-block-all = {
     path = [ pkgs.networkmanager ];
     script = ''
       nmcli radio wifi off
     '';
     wantedBy = [ "multi-user.target" ];
   };

  # 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;

  networking.firewall.enable = true;
  powerManagement.enable = true;
  services.thermald.enable = 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 ... ).
  system.stateVersion = "23.11"; # Did you read the comment?
}

— Me@2024-01-23 09:55:24 AM

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2024.02.29 Thursday (c) All rights reserved by ACHK

This is a file from the Wikimedia Commons.

Picasa was a cross-platform image organizer and image viewer for organizing and editing digital photos, integrated with a now defunct photo-sharing website, originally created by a company named Lifescape (which at that time was incubated by Idealab) in 2002.

— Wikipedia on Picasa

— Me@2023-10-10 08:09:55 PM

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2023.10.10 Tuesday (c) All rights reserved by ACHK