tsconfig.json

{
  "compilerOptions": {
    "target": "ESNext",                                  /* Set the JavaScript language version for emitted JavaScript and include compatible library declarations. */
    "module": "NodeNext",                                  /* Specify what module code is generated. */
    "moduleResolution": "NodeNext",
    "sourceMap": true,                                   /* Create source map files for emitted JavaScript files. */
    "allowJs": true,                                     /* Allow JavaScript files to be a part of your program. Use the 'checkJS' option to get errors from these files. */
    "declaration": true,                                 /* Generate .d.ts files from TypeScript and JavaScript files in your project. */
    "rootDir": "./src",
    "outDir": "./lib/esm",                               /* Specify an output folder for all emitted files. */
    "esModuleInterop": true,                             /* Emit additional JavaScript to ease support for importing CommonJS modules. This enables 'allowSyntheticDefaultImports' for type compatibility. */
    "forceConsistentCasingInFileNames": true,            /* Ensure that casing is correct in imports. */
    "strict": true,                                      /* Enable all strict type-checking options. */
    "skipLibCheck": true                                 /* Skip type checking all .d.ts files. */
  },
  "include": [
    "./src"
  ]
}