New CLI onboarding

.changeset/fair-masks-hear.md

@@ -0,0 +1,11 @@
+---
+'@shopify/cli-hydrogen': minor
+'@shopify/create-hydrogen': minor
+---
+
+The onboarding process when creating new Hydrogen apps has been reworked. Now you can:
+
+- Create a new Shopify storefront and connect it to the local project, or use [Mock.shop](https://mock.shop).
+- Scaffold CSS strategies: Tailwind, CSS Modules, Vanilla Extract, PostCSS.
+- Scaffold i18n strategies: subfolders, domains, subdomains.
+- Automatically generate core routes.