code: function ExpressBem (opts) {
      opts = opts || {};
  
      // project root for bem project
      this.projectRoot = PATH.resolve(opts.projectRoot || opts.root || process.cwd());
      // relative path to bundles
      this.relativePath = opts.path || ExpressBem.PATH;
  
      // bundles path
      this.bundlesPath = PATH.resolve(this.projectRoot, this.relativePath);
  
      // engines
      this.engines = Engines.create(this);
      this.expressViewEngine = this.engines.proxy;
  
      // env cap! yea.
      this._initEnv(opts);
  }
docs: Initialize