code: def prep_for_start_local_env(pull_repos):
      
      if pull_repos:
          update_managed_repos(force=True)
      assembled_spec = spec_assembler.get_assembled_specs()
      if not assembled_spec[constants.CONFIG_BUNDLES_KEY]:
          raise RuntimeError('No bundles are activated. Use `dusty bundles` to activate bundles before running `dusty up`.')
      virtualbox.initialize_docker_vm()
docs: Daemon-side command to ensure we're running the latest
      versions of any managed repos, including the
      specs repo, before we do anything else in the up flow.