message: use experimental type build, include alpha types
diff: "backstage"
  ],
  "scripts": {
  - "build": "backstage-cli package build",
  + "build": "backstage-cli package build --experimental-type-build",
  "lint": "backstage-cli package lint",
  "test": "backstage-cli package test",
  "prepack": "backstage-cli package prepack",
  "react-test-renderer": "^16.13.1"
  },
  "files": [
  - "dist"
  + "dist",
  + "alpha"
  ]
  }
  