tsconfig.base.json

{
  "compilerOptions": {
    /* Language and Environment */
    "target": "ES2020",
    /* Modules */
    "module": "commonjs",
    "moduleResolution": "Node",
    /* Emit */
    "declaration": true,
    "emitDeclarationOnly": true,
    "esModuleInterop": false,
    "forceConsistentCasingInFileNames": true,
    /* Type Checking */
    "strict": true,
    "strictNullChecks": true,
    "skipLibCheck": true
  }
}