tsconfig.json

{
  "compilerOptions": {
    "allowSyntheticDefaultImports": true,
    "alwaysStrict": true,
    "downlevelIteration": true,
    "emitDecoratorMetadata": true,
    "esModuleInterop": true,
    "experimentalDecorators": true,
    "forceConsistentCasingInFileNames": true,
    "module": "CommonJS",
    "moduleResolution": "Node",
    "target": "ES2015",
    "outDir": "./dist",
    "declaration": true,
    "declarationDir": "./dist/__types__",
    "resolveJsonModule": true,
    "skipLibCheck": true,
    "skipDefaultLibCheck": true,
    // Production specific
    "removeComments": true,
    "sourceMap": false,
    "watch": false,
    // Checks
    "allowUnreachableCode": false,
    "noFallthroughCasesInSwitch": true,
    "noImplicitReturns": true,
    "noImplicitAny": true,
    "noImplicitThis": true,
    "noUnusedLocals": true,
    "noUnusedParameters": true,
    "strictBindCallApply": true,
    "strictFunctionTypes": true,
    "strictNullChecks": true,
    "strictPropertyInitialization": true,
    "exactOptionalPropertyTypes": true
  },
  "files": [
    "./src/cli/index.ts"
  ]
}