code: function serve(done) {
    gulp.watch(['src/**/*.css'], () => {
      reset();
      gulp.series('build-css', 'generate-preview', outputDevServerInfo);
    });
  
    gulp.watch(['previewer-src/**', 'patterns.yaml'], () => {
      reset();
      gulp.series('generate-preview-force', outputDevServerInfo)
    });
  
    browserSync.emitter.on('init', outputDevServerInfo);
  
    browserSync.init({
      logLevel: 'silent',
      ui: false,
      port: 4321,
      notify: false,
      server: {
        baseDir: __dirname + '/build',
        middleware: [historyApiFallback()],
      },
      startPath: '/',
      open: false
    });
  }
docs: ////////////////////////////////////// serve //////////////////////////////////////