Nix is too hard to use, config dump

configuration.nix

{ config, pkgs, ... }:

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

  boot.loader.grub.enable = true;
  boot.loader.grub.version = 2;
  boot.loader.grub.device = "/dev/sdb";

  time.timeZone = "Europe/Amsterdam";
  i18n.defaultLocale = "en_US.UTF-8";

  # Enable the GNOME 3 Desktop Environment.
  services.xserver.enable = true;
  services.xserver.displayManager.gdm.enable = true;
  services.xserver.desktopManager.gnome3.enable = true;

  users.users.siilwyn = {
    isNormalUser = true;
    extraGroups = [ "wheel" ]; # Enable ‘sudo’ for the user.
    shell = pkgs.fish;
  };

  programs.fish.enable = true;

  environment.systemPackages = with pkgs; [
    git
    neovim
    firefox
    chromium

    docker
    rustup
    syncthing

    httpie
    glow

    contrast
    vscodium
    fira-code

    # Needed for Volta
    openssl
    gcc
    glibc
  ];

  # The global useDHCP flag is deprecated, therefore explicitly set to false here.
  # Per-interface useDHCP will be mandatory in the future, so this generated config
  # replicates the default behaviour.
  networking.useDHCP = false;
  networking.interfaces.enp0s25.useDHCP = true;
  networking.interfaces.wlp3s0.useDHCP = 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.
  system.stateVersion = "20.09";
}