tsconfig.packages.json

{
  "//": "Shared compilerOptions for every publishable package in packages/*. Enforces Node-native ESM resolution so extensionless or directory relative imports are rejected at build time, preventing ERR_MODULE_NOT_FOUND in consumers that use the native Node ESM resolver (SSR, serverless, test runners, etc.).",
  "extends": "./tsconfig.json",
  "compilerOptions": {
    "module": "nodenext",
    "moduleResolution": "nodenext"
  }
}