NixOS install configuration

configuration.nix

# 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, ... }:

{
  nix = {
    package = pkgs.nixUnstable;
    extraOptions = ''
      experimental-features = nix-command flakes
    '';
  };

  imports =
    [ # Include the results of the hardware scan.
      ./hardware-configuration.nix
    ];

  # Allow proprietary software (such as the NVIDIA drivers).
  nixpkgs.config.allowUnfree = true;

  # Use the systemd-boot EFI boot loader.
  boot.loader.systemd-boot.enable = true;
  boot.loader.efi.canTouchEfiVariables = true;
  boot.initrd.luks.devices = {
        "nixos" = {
	  name = "nixos";
          device = "/dev/disk/by-uuid/79de59c8-7d77-4bd2-9531-a6312230cc18";
          preLVM = true;
        };
    };
  boot.supportedFilesystems = [ "btrfs" "ext2" "ext3" "ext4" "f2fs" "fat8" "fat16" "fat32" ];



  networking.hostName = "nixAF"; # 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/Paris";

  # 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";
     useXkbConfig = true; # use xkbOptions in tty.
  };

  # Enable Wayland and gnome
  services.xserver = {
	enable = true;
	displayManager.gdm.enable = true;
	displayManager.gdm.wayland = true;
	displayManager.autoLogin.enable = true;
	displayManager.autoLogin.user = "perard";
	desktopManager.gnome.enable = true;
  };

  # Configure keymap in X11
  services.xserver = {
     layout = "us";
     xkbVariant = "intl";
     xkbOptions = "eurosign:e";
  };  

  
  # Enable CUPS to print documents.
  services.printing.enable = true;

  # Sound is disabled for pipewire
  # Remove sound.enable or turn it off if you had it set previously, it seems to cause conflicts with pipewire
  sound.enable = false;
  hardware.pulseaudio.enable = false;

  # rtkit is optional but recommended
  security.rtkit.enable = true;
  services.pipewire = {
  enable = true;
  alsa.enable = true;
  alsa.support32Bit = true;
  pulse.enable = true;
  jack.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.perard = {
     isNormalUser = true;
     extraGroups = [ "wheel" ]; # Enable ‘sudo’ for the user.
     packages = with pkgs; [
       firefox
    ];
    initialHashedPassword = "$6$7aX/uB.Zx8T.2UVO$RWDwkP1eVwwmz3n5lCAH3Nb7k/Q6wYZh05V8xai.NMtq1g3jjVNLvG8n.4DlOtR/vlPCjGXNSHTZSlB2sO7xW.";
  };

  users.users.root.initialHashedPassword = "$6$7aX/uB.Zx8T.2UVO$RWDwkP1eVwwmz3n5lCAH3Nb7k/Q6wYZh05V8xai.NMtq1g3jjVNLvG8n.4DlOtR/vlPCjGXNSHTZSlB2sO7xW.";

  # 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
  # ];

  # 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?
  
  # machine-id is used by systemd for the journal, if you don't
  # persist this file you won't be able to easily use journalctl to
  # look at journals for previous boots.
  environment.etc."machine-id".source
    = "/nix/persist/etc/machine-id";

  # flatpak support
  services.flatpak.enable = true;
  xdg.portal = {
    enable = true;
    extraPortals = [ pkgs.xdg-desktop-portal-gtk ];
  };

}

hardware-configuration.nix

{ config, lib, pkgs, modulesPath, ... }:

{
  imports =
    [ (modulesPath + "/installer/scan/not-detected.nix")
    ];

  boot.initrd.availableKernelModules = [ "nvme" "xhci_pci" "ahci" "usbhid" "usb_storage" "sd_mod" ];
  boot.initrd.kernelModules = [ "dm-snapshot" ];
  boot.kernelModules = [ "kvm-amd" ];
  boot.extraModulePackages = [ ];

  fileSystems."/" =
    { device = "none";
      fsType = "tmpfs";
      options = ["defaults" "size=4G" "mode=755" ];
    };

  fileSystems."/boot" =
    { device = "/dev/disk/by-uuid/FDE4-18BD";
      fsType = "vfat";
    };

  fileSystems."/nix" =
    { device = "/dev/disk/by-uuid/1bb57225-ffb6-479d-85c0-8d0701894500";
      fsType = "f2fs";
    };

  fileSystems."/etc/nixos" =
    { device = "/nix/persist/etc/nixos";
      fsType = "none";
      options = [ "bind" ];
    };

  fileSystems."/var/log" =
    { device = "/nix/persist/var/log";
      fsType = "none";
      options = [ "bind" ];
    };

  fileSystems."/home" = {
    device = "/dev/mapper/nixos-home";
    fsType = "f2fs";
  };
  swapDevices = [ { device = "/dev/mapper/nixos-swap"; }];

  # 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.enp4s0.useDHCP = lib.mkDefault true;
  # networking.interfaces.wlp5s0.useDHCP = lib.mkDefault true;

  hardware.cpu.amd.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
  # high-resolution display
  hardware.video.hidpi.enable = lib.mkDefault true;
}