Diamond Hill

diamondhill.app

One foundation.
Many products.

Diamond Hill is the shared platform powering a suite of digital products, a Turborepo monorepo with common packages for auth, email, blog, UI, and data.

7 products running

Built with

Next.js 16

App Router, Server Components, Server Actions

Turborepo

Monorepo build system with shared packages

TypeScript 7

Strict mode across every app

Tailwind CSS 4

CSS-first config, utility-first styling

Neon PostgreSQL

Serverless Postgres, one project per app

Vercel

Deployment, previews, and edge infrastructure

Resend

Transactional email across all products

Conform + Zod 4

Form validation with full type safety

Get in touch

Building something? Let's talk.