code: function (module_name, module_folder, callback) {
      var module_folder = path.resolve(module_folder)
      var module_packaged = _load_package(module_folder);
  
      var module_dependencies = _.d.get(module_packaged, "/dependencies");
      if (!module_dependencies) {
          return callback();
      }
  
      module_dependencies = _.keys(module_dependencies);
  
      var _install_next = function() {
          if (module_dependencies.length === 0) {
              return callback();
          }
  
          var dname = module_dependencies.pop();
          var dependency_folder = path.join(module_folder, "node_modules", dname);
          var dependency_homestard = _load_homestar(dependency_folder);
  
          var is_module = _.d.get(dependency_homestard, "/module", false);
          if (!is_module) {
              return _install_next();
          }
  
          console.log("- found dependency:", dname);
          _install(dname, function() {
              try {
                  console.log("- cleanup");
                  console.log("  path:", dependency_folder);
                  _rmdirSync(dependency_folder);
              } catch (x) {
              }
  
              _install_next();
          });
      }
  
      _install_next();
  }
docs: homestar.dependencies can allow more things to be installed into homestar,
  essentially recursively