tsconfig.json

{
  "compilerOptions": {
    "module": "ESNext",
    "declaration": true,
    "removeComments": true,
    "emitDecoratorMetadata": true,
    "experimentalDecorators": true,
    "allowSyntheticDefaultImports": true,
    "jsx": "react-jsx",
    "jsxImportSource": "hono/jsx",
    "target": "ES2020",
    "sourceMap": true,
    "outDir": "./dist",
    "baseUrl": "./",
    "incremental": true,

    "skipLibCheck": true,
    "strict": true, // enables all strict flags
    "strictNullChecks": true, // catch nulls/undefined
    "noImplicitAny": true, // no sneaky `any`s
    "strictBindCallApply": true, // stricter function/method calls
    "forceConsistentCasingInFileNames": true,
    "noFallthroughCasesInSwitch": true,
    "noUncheckedIndexedAccess": true, // safer array/object access
    "noImplicitReturns": true, // ensure functions return something
    "noImplicitThis": true,

    "moduleResolution": "node",
    "resolveJsonModule": true,
    "esModuleInterop": true,
    "isolatedModules": true, // for strict module isolation
    "noEmitOnError": true, // stop emitting if errors exist

    "lib": ["ES2020"],
    "typeRoots": ["./node_modules/@types"]
  },
  "include": ["src/**/*", "tests/**/*", "scripts/**/*"],
  "exclude": ["node_modules", "dist", "test", "**/*spec.ts"]
}