ShadCN UI styles not working in Nx Monorepo with Tailwind v4 and Next.js 15

[Rishavraaj]

❓ ShadCN UI styles not working in Nx Monorepo with Tailwind v4 and Next.js 15

Hey folks, I'm using ShadCN UI in an Nx monorepo setup with:

• Tailwind CSS v4
• Next.js 15

I'm running into an issue where ShadCN UI components are rendering without styles.

I have placed the components and styles inside a shared libs/ui folder, and I'm importing components like this:

import { Button } from '@myorg/ui';

However, the styles from ui/styles.css are not being applied in the consuming app.

What I’ve tried:

• Verified that Tailwind is working in the app itself.
• Verified that PostCSS and Tailwind are correctly configured in both the app and the libs/ui project.

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💡 Question

Has anyone successfully used ShadCN UI with Nx + Tailwind v4 + Next.js 15?
Is there a recommended way to structure shared UI libraries so styles are correctly applied?

Any advice or working examples would be super helpful 🙏

Thanks in advance!