tsconfig.json

{
  "compilerOptions": {
    "allowUnreachableCode": false,
    "allowUnusedLabels": false,
    "alwaysStrict": true,
    "baseUrl": "packages",
    "declaration": true,
    "declarationMap": true,
    "forceConsistentCasingInFileNames": true,
    "importHelpers": true,
    "lib": ["es6", "dom", "es2016", "es2017", "esnext", "es2019", "es2020"],
    "module": "esnext",
    "moduleResolution": "node",
    "newLine": "LF",
    "noEmitHelpers": true,
    "noImplicitAny": true,
    "noImplicitReturns": true,
    "noImplicitThis": true,
    "noUnusedLocals": true,
    "noUnusedParameters": true,
    "skipLibCheck": true,
    "sourceMap": true,
    "strict": true,
    "target": "es2017",

    "strictNullChecks": true,
    "strictFunctionTypes": true,
    "strictPropertyInitialization": false,
    "experimentalDecorators": true,
    "emitDecoratorMetadata": true,
    "noFallthroughCasesInSwitch": true,
    "resolveJsonModule": true,
    "esModuleInterop": true
  },
  "exclude": [
    "node_modules",
    "packages/*/dist",
    "packages/*/node_modules",
    "packages/*/src/**/*.test.ts",
    "packages/*/src/**/_mocks.ts"
  ]
}