uppy/examples/dev/package.json

{
  "dependencies": {
    "@babel/core": "^7.2.2",
    "aliasify": "^2.1.0",
    "babelify": "^10.0.0",
    "watchify": "^3.11.0"
  },
  "scripts": {
    "watch:sandbox": "watchify -t babelify -t aliasify main.js -o bundle.js -vd"
  },
  "aliasify": {
    "aliases": {
      "@uppy": "../../packages/@uppy"
    }
  }
}