# i18n Enable internationalization in the SvelteKit project. ### Syntax ``` $ vela enable i18n ``` This sets up [Wuchale](https://wuchale.dev) with locale-aware routing. Translatable strings are extracted from the source rather than written into message files by hand, so no keys are maintained separately from the markup. Has no dependencies — it works with or without a backend, and composes with [content negotiation](/enable/content-negotiation)'s reroute hook. ### What you get - `wuchale.config.js`, with the locales `en` and `es`. English is the source locale and keeps the unprefixed URLs; Spanish is served under `/es`. - A `reroute` hook in `src/hooks.ts` that maps localized URLs back to their routes, and the URL helpers it uses in `src/lib/url.ts`. The file is created if the project has none; otherwise the hook is composed with the existing `reroute`. - A language select in `src/lib/components/language-select.svelte`, added to the root layout. - A handle in `src/hooks.server.ts` that loads the catalogs on the server and renders each request in its locale. The file is created if the project has none; otherwise the handle is composed with the existing `handle`. - A `load` in `src/routes/+layout.ts` that loads the locale's catalog in the browser. It is added to a file that has route options of its own; a file that already has a `load` is left alone, with a note on what to merge. - `lang="%sveltekit.lang%"` on the `` tag in `src/app.html`, which the handle fills in with the locale. - The Wuchale plugin in the Vite config, and a `$locales` alias for `src/locales`, where the catalogs live. The alias goes in `svelte.config.js`, or in the `sveltekit()` options if the Vite config sets them there. - The `wuchale` and `@wuchale/svelte` packages, and the `select` component in a project with shadcn-svelte. - A `.gitignore` entry for `src/locales/.wuchale`. In a project with shadcn-svelte, the language select is a shadcn `Select`, added as the last item of the navbar in the root layout. Without shadcn-svelte, as in a project from `sv create`, it's a native `