@nguniversal/express-engine/schematics/collection.json

{
  "$schema": "../../node_modules/@angular-devkit/schematics/collection-schema.json",
  "schematics": {
    "ng-add": {
      "description": "Adds Angular Universal Express Engine to the application without affecting any templates",
      "factory": "./install",
      "schema": "./install/schema.json",
      "aliases": ["express-engine-shell"]
    }
  }
}