puppeteer/packages/puppeteer-core/src/tsconfig.esm.json

{
  "extends": "../../../tsconfig.base.json",
  "compilerOptions": {
    "outDir": "../lib/esm/puppeteer"
  },
  "references": [
    {"path": "../third_party/tsconfig.json"},
    {"path": "../compat/esm/tsconfig.json"}
  ]
}