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packages/next-utils/README.md

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+# @mintel/next-utils
+
+Reusable utilities for Mintel Next.js projects.
+
+## Features
+
+- **i18n**: Standardized middleware and request configuration for `next-intl`.
+- **Env Validation**: Zod-based environment variable validation.
+- **Rate Limiting**: Simple in-memory rate limiting for server actions.
+
+## Usage
+
+### i18n Middleware
+```typescript
+import { createMintelMiddleware } from "@mintel/next-utils";
+
+export default createMintelMiddleware({
+  locales: ["en", "de"],
+  defaultLocale: "en",
+});
+```
+
+### Env Validation
+```typescript
+import { validateMintelEnv } from "@mintel/next-utils";
+
+const env = validateMintelEnv();
+```