jung.dev Starter
Skip the setup.
Ship the product.
A highly opinionated, production-ready monorepo starter for B2B SaaS apps. Cloudflare-native. AI-first. Auth, payments, email, multi-tenancy — all wired up.
Most starters waste your time.
You've seen the pattern. Clone a repo, spend three days ripping out the parts you don't need, another week wiring up auth, payments, and email. By the time you write your first line of business logic, you've burned two weeks on plumbing.
This starter is different. It's the stack I actually use on real projects — for clients and my own products. Every decision has been made. Every integration has been tested. You clone it, and you're building your product on day one.
What's inside
A monorepo with two apps and everything you need to go from zero to production.
Astro
Static marketing site. Fast, SEO-friendly, zero JS by default. The same setup that powers this page.
React + Hono + Tanstack
Full-stack app with Tanstack Router, Tanstack Query, and a Hono API backend. Type-safe from database to UI.
Cloudflare
D1 database, Workers, R2. Deploy globally with zero cold starts. One platform, no DevOps headaches.
Everything wired up
Authentication
Email/password, OAuth, magic links. Session management, RBAC, and multi-tenancy built in. No Auth0, no monthly bill.
Database
Type-safe ORM with migrations, seeding, and Cloudflare D1. Zero-latency reads at the edge. SQL when you need it.
Payments
Subscriptions, one-time payments, webhooks. Customer portal, plan management, and billing state synced to your database.
Transactional emails that actually arrive. React-based templates, delivery tracking. Wired up and ready to send.
Multi-Tenancy
Organizations, team invites, role-based access. The hard part of B2B SaaS, done for you.
Tooling
Vitest, oxc, rolldown. The fastest build and test toolchain available. No webpack, no slow CI.
Built for the AI era
This isn't just AI-friendly. It's AI-first.
Every technology in this stack was chosen because LLMs understand it deeply. Modern, well-documented libraries with large training footprints. Your coding agent won't be guessing — it'll be productive from the first prompt.
AGENTS.md
A structured project manifest that tells AI agents how to navigate, build, test, and deploy your codebase. Your agent reads this first and knows exactly how to work with your project.
Skills Files
Reusable prompt templates for common development tasks — creating routes, adding API endpoints, writing migrations. Turn repetitive work into one-shot commands.
Modern Stack
Hono, Drizzle, Tanstack, better-auth — these aren't legacy libraries with scattered docs. They're modern, well-typed, and heavily represented in LLM training data.
Who this is for
Build with this if...
- You're building a B2B SaaS with multi-tenancy
- You want Cloudflare-native from day one
- You use AI coding tools and want a stack that works with them
- You're tired of stitching together 15 different tutorials
- You value opinions over options
Skip this if...
- You want a minimal template with no opinions
- You're building a simple landing page or blog
- You need AWS or Vercel infrastructure
- You're looking for a no-code solution
Pricing
Starter
- Complete monorepo source code
- Astro landing page + React app
- Auth, payments, email, multi-tenancy
- AGENTS.md + AI skills files
- Lifetime updates
Delivery by email after payment. Download link stays valid for 48 hours.
Starter Pro
- Everything in Starter
- 30-minute 1-on-1 onboarding call
- Walk through your project setup
- Architecture advice for your use case
- Priority support via email
Includes the same download by email plus your private onboarding booking link in the purchase email.
One-time purchase. No subscriptions. You own the code. Managed checkout via Stripe.
FAQ
Can I use this for multiple projects?
Yes. The license allows unlimited personal and commercial projects. Build as many products as you want with it.
How is this different from create-t3-app or other starters?
Most starters give you a starting point and leave the hard decisions to you. This one makes those decisions — auth, payments, multi-tenancy, deployment — and wires everything together. It's the stack I use on real projects, not a demo.
Do I need Cloudflare?
Yes. This starter is purpose-built for Cloudflare's platform — D1 and Workers. That's a feature, not a limitation. You get global edge deployment, zero cold starts, and a predictable bill.
What does "AI-first" actually mean?
Every library was chosen for excellent LLM compatibility. The repo includes AGENTS.md (a structured manifest for AI coding agents) and skills files (reusable prompt templates for common tasks). Your coding agent will be productive from the first prompt.
What's included in the 30-minute call?
We'll walk through the codebase together, I'll help you set up your project, and give you architecture advice specific to your use case. It's a 1-on-1 with the person who built it.
Stop building infrastructure.
Start building your product.
Everything you need to ship a production-ready B2B SaaS.
Questions? Email jannik@jung.dev