tsconfig.json

{
  "compilerOptions": {
    "allowSyntheticDefaultImports": true,
    "baseUrl": ".",
    "esModuleInterop": true,
    "experimentalDecorators": true,
    "forceConsistentCasingInFileNames": true,
    "jsx": "react",
    "lib": ["dom", "es2017", "esnext.asynciterable"],
    "module": "commonjs",
    "strict": true,
    "target": "es2017",
    "declaration": true
  },
  "exclude": [
    "packages/*/lib",
    "packages/yarnpkg-doctor/fixtures"
  ]
}