docs: def initialize_ugm(config, global_config, local_config):
      """Initialize UGM.
      """
      # custom UGM styles
      cfg.merged.css.protected.append((static_resources, 'styles.css'))
  
      # custom UGM javascript
      cfg.merged.js.protected.append((static_resources, 'ugm.js'))
  
      # UGM settings
      register_config('ugm_general', GeneralSettings)
      register_config('ugm_server', ServerSettings)
      register_config('ugm_users', UsersSettings)
      register_config('ugm_groups', GroupsSettings)
      register_config('ugm_roles', RolesSettings)
      register_config('ugm_localmanager', LocalManagerSettings)
  
      # Users container
      register_entry('users', users_factory)
  
      # Groups container
      register_entry('groups', groups_factory)
  
      # register default acl's
      # XXX: define permissions referring users, user, groups respective group only
      acl_registry.register(ugm_user_acl, User, 'user')
      acl_registry.register(ugm_default_acl, Users, 'users')
      acl_registry.register(ugm_default_acl, Group, 'group')
      acl_registry.register(ugm_default_acl, Groups, 'groups')
  
      # localmanager config file location
      lm_config = local_config.get('ugm.localmanager_config', '')
      os.environ['LOCAL_MANAGER_CFG_FILE'] = lm_config
  
      # add translation
      config.add_translation_dirs('cone.ugm:locale/')
  
      # static resources
      config.add_view(static_resources, name='cone.ugm.static')
  
      # scan browser package
      config.scan('cone.ugm.browser')