tsconfig.json

{
  "ts-node": {
    // these options are overrides used only by ts-node
    // same as our --compilerOptions flag and our TS_NODE_COMPILER_OPTIONS environment variable
    "compilerOptions": {
      "module": "commonjs"
    }
  },
  "compilerOptions": {
    "target": "ESNext",
    "module": "ESNext",
    "rootDir": "./",
    "outDir": "./build/",
    "strict": true,
    "moduleResolution": "node",
    "importHelpers": true,
    "experimentalDecorators": true,
    "esModuleInterop": true,
    "skipLibCheck": true,
    "allowSyntheticDefaultImports": true,
    "resolveJsonModule": true,
    "forceConsistentCasingInFileNames": true,
    "removeComments": true,
    "typeRoots": ["node_modules/@types"],
    "sourceMap": false,
    "baseUrl": "./"
  },
  "files": ["src/index.ts"],
  "include": ["./**/*.ts"],
  "exclude": ["node_modules", "dist"],
  "scripts": {
    "start": "ts-node src/index.ts"
  }
}