docs: async function updateConfig(options, programInstance) {
        await configStore.updateConfig(config => {
          originalConfig = config;
  
          config.verbosity =
            typeof program.verbosity === 'undefined'
              ? config.verbosity
              : program.verbosity;
  
          config.openServerAtStart =
            typeof options.open === 'undefined'
              ? config.openServerAtStart
              : options.open;
  
          config.renderingService =
            typeof options.renderingService === 'undefined'
              ? process.env.TRAVIS
                ? false
                : config.renderingService
              : options.renderingService;
  
          config.env = process.env.NODE_ENV
            ? process.env.NODE_ENV
            : typeof options.env === 'undefined'
            ? config.env
            : options.env;
  
          config.webpackStats =
            typeof options.webpackStats === 'undefined'
              ? config.webpackStats
              : options.webpackStats;
  
          config.webpackDevServer =
            typeof options.webpackDevServer === 'undefined'
              ? config.webpackDevServer
              : options.webpackDevServer;
  
          config.mode =
            typeof options.mode === 'undefined' ? config.mode : options.mode;
  
          config.quick =
            typeof options.quick === 'undefined' ? config.quick : options.quick;
  
          config.watch =
            typeof options.watch === 'undefined' ? config.watch : options.watch;
  
          config.prod =
            typeof program.prod === 'undefined' ? config.prod : program.prod;
  
          // automatically set enableSSR to true in prod mode and false in dev mode, unless manually set.
          config.enableSSR = false;
  
          config.i18n =
            typeof options.i18n === 'undefined'
              ? config.prod
                ? true
                : false
              : options.i18n;
  
          // If i18n is disabled, ignore and remove lang config settings
          if (config.lang && config.i18n === false) {
            // Remove any lang-specific settings for local dev to speed things up.
            delete config['lang'];
          }
  
          return config;
        });
  
        const config = await configStore.getConfig();
        log.dim(`Verbosity: ${config.verbosity}`);
        log.dim(`Prod: ${config.prod}`);
        log.dim(`i18n: ${config.i18n}`);
        log.dim(
          `enableSSR: ${config.enableSSR} ${
            originalConfig.enableSSR ? '(manually set)' : '(auto set)'
          }`,
        );
        log.dim(`Rendering Mode: ${config.mode}`);
        if (config.verbosity > 2) {
          log.dim(`Opening browser: ${config.openServerAtStart}`);
          log.dim(`Quick mode: ${config.quick}`);
          log.dim(`buildDir: ${config.buildDir}`);
          log.dim(`dataDir: ${config.dataDir}`);
          log.dim(`wwwDir: ${config.wwwDir}`);
        }
  
        // Basically at this point, the cli is bootstrapped and ready to go.
        // Let's build the core bolt manifest
        await buildBoltManifest();
        return config;
      }