tsconfig.json

{
    "compilerOptions": {
        // Enable latest features
        "lib": ["ESNext", "DOM"],
        "target": "ES2022",
        "module": "CommonJS",
        "moduleDetection": "force",
        "jsx": "react-jsx",
        "allowJs": true,
        "isolatedModules": true,
        "outDir": "dist",
        // Bundler mode
        "moduleResolution": "Node",
        "declaration": true,
        "allowImportingTsExtensions": true,
        "noEmit": true,
        "noImplicitAny": true,
        "esModuleInterop": true,
        "strictNullChecks": true,
        "resolveJsonModule": true,

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

        // Some stricter flags (disabled by default)
        "noUnusedLocals": false,
        "noUnusedParameters": false,
        "noPropertyAccessFromIndexSignature": false
    },
    "include": ["src"],
    "exclude": ["node_modules"]
}