{
  pkgs,
  nixosLib,
  clan-core,
  module,
  ...
}:
nixosLib.runTest (
  { ... }:
  {
    imports = [
      clan-core.modules.nixosVmTest.clanTest
    ];

    hostPkgs = pkgs;

    name = "hello-service";

    clan = {
      directory = ./.;
      modules = {
        hello-service = module;
      };
      inventory = {
        machines.peer1 = { };

        instances."test" = {
          module.name = "hello-service";
          roles.peer.machines.peer1 = { };
        };
      };
    };

    testScript =
      { nodes, ... }:
      ''
        start_all()

        # peer1 should have the 'hello' file
        value = peer1.succeed("cat ${nodes.peer1.clan.core.vars.generators.hello.files.hello.path}")
        assert value.strip() == "Hello world from peer1", value
      '';
  }
)