nixos/all-tests.nix: Set nixpkgs.system

let

  inherit (lib) mkOption mkForce optional types mapAttrs mkDefault mdDoc;

  system = hostPkgs.stdenv.hostPlatform.system;

  baseOS =

    import ../eval-config.nix {

      inherit system;

      system = null; # use modularly defined system

      inherit (config.node) specialArgs;

      modules = [ config.defaults ];

      baseModules = (import ../../modules/module-list.nix) ++

          ({ config, ... }:

            {

              virtualisation.qemu.package = testModuleArgs.config.qemu.package;

            })

          ({

            config = {

              # Ensure we do not use aliases. Ideally this is only set

              # when the test framework is used by Nixpkgs NixOS tests.

              nixpkgs.config.allowAliases = false;

              # TODO: switch to nixpkgs.hostPlatform and make sure containers-imperative test still evaluates.

              nixpkgs.system = hostPkgs.stdenv.hostPlatform.system;

            };

          })

          testModuleArgs.config.extraBaseModules

        ];