tsconfig.json

{
  "compilerOptions": {
    // Environment setup & latest JavaScript features
    "lib": ["ESNext"],
    "target": "ESNext",
    "module": "Preserve",
    "moduleDetection": "force",
    "jsx": "react-jsx",
    "allowJs": true,

    // Module resolution for bundlers
    "moduleResolution": "bundler",
    "allowImportingTsExtensions": false,
    "verbatimModuleSyntax": true,

    // Output settings (enable .d.ts generation)
    "outDir": "./dist", // output directory for compiled files
    "declaration": true, // generate .d.ts files
    "emitDeclarationOnly": true, // generate both .js and .d.ts
    "noEmit": false, // must be false to emit files

    // Best practices
    "strict": true,
    "skipLibCheck": true,
    "noFallthroughCasesInSwitch": true,
    "noUncheckedIndexedAccess": true,
    "noImplicitOverride": true,

    // Optional stricter flags
    "noUnusedLocals": false,
    "noUnusedParameters": false,
    "noPropertyAccessFromIndexSignature": false
  },
  "include": ["src"]
}