# Folders other pages describe

The layout only reserves these folders; each piece has its own page. Route
groups are on [HTTP](/docs/http.md), schedules on
[Background work](/docs/jobs-and-events.md), integrations and provider API
versions on [External services](/docs/external-services.md), translation files on
[Translations as messages](/docs/translations-as-messages.md), and the migration
workflow on [Entities, stores and migrations](/docs/data.md).