uppy/packages/@uppy/companion/tsconfig.json

{
  "compilerOptions": {
    "outDir": "./lib",
    "module": "commonjs",
    "declaration": true,
    "target": "es6",
    "noImplicitAny": false,
    "sourceMap": false,
    "allowJs": true,
    "checkJs": true,
    "noEmitOnError": true
  },
  "include": [
    "src/**/*"
  ]
}