# Dual Sidebar App Shell with Dark Nav Rail and Slide-In Calendar Context Panel

> Three-column workspace shell: dark collapsible nav rail with command search, team list and usage meter, breadcrumb header, and a slide-in right Calendar panel with agenda and account toggles. ReUI Frame, Badge, Rating plus shadcn Sidebar, Calendar.

A paid shadcn/ui block sold by the [@reui](https://reui.io/?utm_source=shadcn.exchange) registry, listed on [shadcn.exchange](https://shadcn.exchange/r/reui/app-shell-6).

- Page, with a preview: https://shadcn.exchange/r/reui/app-shell-6
- Screenshot: https://abzjhwgwpdpz7ua5.public.blob.vercel-storage.com/shots/reui/app-shell-6-light-dcd8eb02a3533eac.png
- Listed: 2026-10-13

## Buy and install

@reui sells this block, and its code is not on shadcn.exchange. Buy it from the registry, which installs it for those who have: https://shadcn.exchange/out/reui/app-shell-6

## Dependencies

- npm packages: `cn`, `next-themes`, `react-day-picker`
- Registry items: `@reui/badge`, `@reui/frame`, `@reui/rating`, `avatar`, `breadcrumb`, `button`, `button-group`, `calendar`, `checkbox`, `collapsible`, `dialog`, `dropdown-menu`, `input`, `item`, `kbd`, `popover`, `progress`, `scroll-area`, `separator`, `sheet`, `sidebar`, `tooltip`, `use-mobile`