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{ lib, inputs, extraModules, isNixOS, isIso, isHardware, user, nixpkgs, home-manager, ... }:
let
  secrets = import ../secrets;

  dotfiles = ../dotfiles;

  hosts = [
    { host = "phobos"; system = "x86_64-linux"; extraOverlays = [ ]; timezone = secrets.main_timezone; location = secrets.main_location; }
    { host = "luna"; system = "x86_64-linux"; extraOverlays = [ ]; timezone = secrets.main_timezone; location = secrets.main_location; }
  ];

  hardwares = [
    { hardware = "laptop"; }
    { hardware = "chromebook"; }
    { hardware = "virtualbox"; }
  ];

  mkHost = { host, hardware, system, timezone, location, extraOverlays }: extraModules: isNixOS: isIso: isHardware:
    let
      pkgs = import nixpkgs {
        inherit system;
        config = {
          allowUnfree = true;
          allowBroken = true;
        };
        overlays = [
          inputs.nur.overlay
          (import ../packages)
          (import ../overlays)
        ] ++ extraOverlays;
      };
      extraArgs = { inherit pkgs inputs isIso isHardware user secrets dotfiles timezone location; hostname = host; };
      extraSpecialModules = extraModules ++ lib.optional isHardware  ../hardware/${hardware} ++ lib.optional isIso "${nixpkgs}/nixos/modules/installer/cd-dvd/installation-cd-minimal.nix";
    in
    if isNixOS
    then
      nixpkgs.lib.nixosSystem
        {
          inherit system;
          specialArgs = extraArgs;
          modules = [
            ./configuration.nix
            ./${host}
            home-manager.nixosModules.home-manager
            {
              home-manager.useGlobalPkgs = true;
              home-manager.useUserPackages = true;
              home-manager.extraSpecialArgs = extraArgs;
              home-manager.users.${user} = {
                imports = [
                  ./home.nix
                  ./${ host }/home.nix
                ];
              };
            }
          ] ++ extraSpecialModules;
        }
    else
      home-manager.lib.homeManagerConfiguration
        {
          inherit pkgs;
          extraSpecialArgs = extraArgs;
          modules = [
            ./home.nix
            ./${ host }/home.nix
          ];
        };

  permutatedHosts = lib.concatMap (hardware: map (host: host // hardware) hosts) hardwares;
in
  /*
    We have a list of sets.
    Map each element of the list applying the mkHost function to its elements and returning a set in the listToAttrs format
    builtins.listToAttrs on the result
  */
builtins.listToAttrs (map (mInput@{ host, hardware, system, timezone, location, extraOverlays }: { name = host + "-" + hardware; value = mkHost mInput extraModules isNixOS isIso isHardware; }) permutatedHosts)