{
  inputs,
  sources,
  system,
}:

let
  overlay = _: prev: {
    terraform-backend =
      prev.callPackage "${sources.nixpkgs-unstable}/pkgs/by-name/te/terraform-backend/package.nix"
        { };
    opentofu = pkgs.callPackage ../../tf.nix { };
  };
  pkgs = import sources.nixpkgs {
    inherit system;
    overlays = [ overlay ];
  };
in
pkgs.testers.runNixOSTest {
  imports = [
    ../common/nixosTest.nix
    ./nixosTest.nix
  ];
  _module.args = {
    inherit inputs sources;
    modulesPath = "${builtins.toString pkgs.path}/nixos/modules";
  };
  inherit (import ./constants.nix)
    targetMachines
    pathToRoot
    pathFromRoot
    ;
}