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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
+    ];
+
+  # Bootloader.
+  boot.loader.systemd-boot.enable = true;
+  boot.loader.efi.canTouchEfiVariables = true;
+  boot.loader.efi.efiSysMountPoint = "/boot/efi";
+  boot.extraModprobeConfig = "options kvm_intel nested=1";
+
+  networking.hostName = "deck"; # 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 = "Asia/Kolkata";
+
+  # Select internationalisation properties.
+  i18n.defaultLocale = "en_IN.utf8";
+
+  # 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.user = {
+    isNormalUser = true;
+    description = "user";
+    shell = pkgs.zsh;
+    extraGroups = [ "networkmanager" "wheel" "libvirtd" "qemu" "qemu-kvm"];
+    
+    packages = with pkgs; [
+      firefox
+      kate
+      vim
+      libvirt
+      spice-gtk
+      qemu
+      qemu_kvm
+      virt-viewer
+    #  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
+  virt-manager
+  ];
+
+  # 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 = "22.05"; # Did you read the comment?
+
+	environment.sessionVariables = rec {
+		PATH = [
+			"\{$HOME}/.nix-defexpr/channels:/nix/var/nix/profiles/per-user/root/channels\${NIX_PATH:+:\$NIX_PATH}"
+];
+};
+
+  # Virtualisation
+  virtualisation.libvirtd.enable = true;
+  programs.dconf.enable = true;
+ 
+}

home.nix

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+{ config, pkgs, ... }:
+
+{
+  # Home Manager needs a bit of information about you and the
+  # paths it should manage.
+  home.username = "user";
+  home.homeDirectory = "/home/user";
+
+  # This value determines the Home Manager release that your
+  # configuration is compatible with. This helps avoid breakage
+  # when a new Home Manager release introduces backwards
+  # incompatible changes.
+  #
+  # You can update Home Manager without changing this value. See
+  # the Home Manager release notes for a list of state version
+  # changes in each release.
+  home.stateVersion = "22.05";
+
+  # Let Home Manager install and manage itself.
+  programs.home-manager.enable = true;
+
+  nixpkgs.config.allowUnfree = true;
+
+  home.packages = [
+	pkgs.wget
+	pkgs.neofetch
+	pkgs.htop
+	pkgs.oh-my-zsh
+	pkgs.git
+	pkgs.chromium
+	pkgs.gdb
+	pkgs.clang
+	pkgs.lldb
+	pkgs.kitty
+  ];
+
+	programs.bash = {
+		enable = true;
+		bashrcExtra = ''
+			. ~/bashrc
+		'';	
+	};
+
+	programs.zsh = {
+		enable = true;
+		enableCompletion = true;
+		enableAutosuggestions = true;
+		enableSyntaxHighlighting = true;
+		oh-my-zsh = {
+			enable = true;
+			theme = "ys";
+			plugins = ["git" "colored-man-pages" "extract" "sudo"];
+		};
+	};
+
+}