tsconfig.node.json

{
  // This config governs vite.config.ts specifically — tooling code that
  // runs under Node.js while you're developing (e.g. when you run
  // `npm run dev`), never inside a browser. That's why "types" below is
  // "node" rather than the "DOM" lib used in tsconfig.app.json: this
  // code can use Node-only APIs and should NOT assume `window` or
  // `document` exist.
  "compilerOptions": {
    "tsBuildInfoFile": "./node_modules/.tmp/tsconfig.node.tsbuildinfo",
    "target": "es2023",
    "lib": ["ES2023"],
    "types": ["node"],
    "skipLibCheck": true,

    /* Bundler mode */
    // "nodenext" (vs. "esnext" in the app config) tells TypeScript to
    // follow Node.js's actual module resolution rules, since this file
    // is executed directly by Node rather than bundled for a browser.
    "module": "nodenext",
    "allowImportingTsExtensions": true,
    "verbatimModuleSyntax": true,
    "moduleDetection": "force",
    "noEmit": true,

    /* Linting */
    "noUnusedLocals": true,
    "noUnusedParameters": true,
    "erasableSyntaxOnly": true,
    "noFallthroughCasesInSwitch": true
  },
  // Only vite.config.ts is checked under these Node-flavored rules.
  "include": ["vite.config.ts"]
}