Building a SaaS with a $0 Budget: How I Used Next.js and PayPal to Disrupt Ghostwriting

Most people think you need a $2,000/month stack to launch a SaaS. I built Lancer Write with a $0 budget.

The Tech Stack:

Framework: Next.js 15 (App Router)

Auth: Clerk (Free tier)

Database: Supabase (Free tier)

AI: Groq + Llama 3.3 (Zero latency, ultra-cheap)

Payments: PayPal Developer SDK

The "Aha!" Moment
I noticed ghostwriters were struggling with client management. I built a system where the "back door" is automated via webhooks. When a user pays via PayPal, a Supabase webhook triggers, updating their is_pro status instantly.

The Killer Feature: Magic Links
I bypassed the "Account Fatigue" problem by using secure, unique tokens in URLs. Clients can approve content without ever creating a login.

I’m outreaching to some BETA TESTERS who would like to become a part of LancerWrite and get a FOREVER ACCOUNT for JUST $15. For any ghostwriters out there, feel free to reach out any time

Take a look at the live build: https://lancer-write.vercel.app/