tsconfig.json

{
  "compilerOptions": {
    "strict": true,
    "noUnusedLocals": true,
    "resolveJsonModule": true,
    "outDir": "build",
    "target": "ES2020",
    "module": "commonjs",
    "allowJs": false,
    "moduleResolution": "node",
    "declaration": true,
    "experimentalDecorators": true,
    "pretty": true,
    "noFallthroughCasesInSwitch": true,
    "noImplicitReturns": true,
    "forceConsistentCasingInFileNames": true,
    "esModuleInterop": true,
    // skipLibCheck might be considered unacceptable,
    // also see this discussion:
    // https://github.com/firebase/firebase-functions/issues/551
    "skipLibCheck": true,
    "incremental": true,
    "downlevelIteration": true,
    "declarationMap": true,
    "composite": true,
    "inlineSourceMap": true,
    "types": ["jest", "node"]
  },
  "exclude": [
    "**/node_modules/*",
    "**/dist",
    "**/build",
    "**/test",
    "**/spec",
    "**/scripts"
  ],
  "references": [
    { "path": "./packages/controller" },
    { "path": "./packages/installer" },
    { "path": "./packages/uninstaller" },
    { "path": "./packages/cli" }
  ]
}