Working state: Serbian at root (/), English at /en, proper i18n structure

src/i18n/index.ts

@@ -0,0 +1,15 @@
+import { getRequestConfig } from "next-intl/server";
+import { notFound } from "next/navigation";
+
+export const locales = ["en", "sr"] as const;
+export type Locale = (typeof locales)[number];
+
+export default getRequestConfig(async ({ locale }) => {
+  const currentLocale = locale || "sr";
+  if (!locales.includes(currentLocale as Locale)) notFound();
+
+  return {
+    locale: currentLocale,
+    messages: (await import(`./messages/${currentLocale}.json`)).default,
+  };
+});