tsconfig.json

{
  "compilerOptions": {
    "strict": true,
    "noImplicitAny": false,
    "noImplicitThis": false,
    "allowSyntheticDefaultImports": true,
    "skipLibCheck": true,
    "forceConsistentCasingInFileNames": true,
    "moduleResolution": "node",
    "downlevelIteration": true,
    "rootDir": ".",
    "outDir": "lib", // if out path for a file is same as its src path, nothing will be emitted
    "resolveJsonModule": true,
    "esModuleInterop": true,
    "jsx": "react",
    "lib": ["es2020", "dom"],
    "composite": true // required on the dependency project for references to work
  },
  "files": [
    // by whitelisting the files to include, TS won't automatically
    "package.json" // include all source below root, which is the default.
  ]
}