tsconfig.json

{
  "compilerOptions": {
    // Enable top-level await, and other modern ESM features.
    "target": "ESNext",
    "module": "ESNext",
    // Enable node-style module resolution, for things like npm package imports.
    "moduleResolution": "node",
    // Enable JSON imports.
    "resolveJsonModule": true,

    "removeComments": true,
    "preserveConstEnums": true,
    "strict": true,
    "alwaysStrict": true,
    "strictNullChecks": true,
    "noUncheckedIndexedAccess": true,

    "noImplicitAny": true,
    "noImplicitReturns": true,
    "noImplicitThis": true,
    "noUnusedLocals": true,
    "noUnusedParameters": true,
    "allowUnreachableCode": false,
    "noFallthroughCasesInSwitch": true,

    "outDir": "dist",
    "declaration": true,
    "declarationDir": "types",

    "esModuleInterop": true,
    "allowSyntheticDefaultImports": true,
    "allowJs": false,
    "skipLibCheck": true,
    "forceConsistentCasingInFileNames": true,

    "jsx": "react-jsx",
    // Enable stricter transpilation for better output.
    "isolatedModules": true
  },
  "exclude": ["./dist/**/*", "./node_modules/**/*"]
}