§ /work / viberole · 2025
viberole.app
AI-powered quiz product with end-to-end payments. Solo build, idea to production.
- year
- 2025
- role
- Solo — founder & engineer
- stack
- Next.js · TypeScript · OpenAI · Anthropic · Stripe
- status
- Live
What it is
A live AI quiz product — users answer questions, LLMs generate tailored output. Built full-stack on Next.js with OpenAI and Anthropic APIs routed on the server.
What I shipped
- Full product loop: auth, generation, payment, post-purchase delivery
- Stripe integration end-to-end — not a pretend checkout
- Provider-agnostic LLM layer so I can swap / A-B between OpenAI and Anthropic without touching the product code
- Prompt and cost guardrails so a single user can’t blow up the bill
Why it’s interesting
I wanted to see how far a solo engineer can take an AI product in 2025 — from a blank editor to a real paid flow. The answer turns out to be “pretty far” once the LLM plumbing is abstracted; most of the work ends up looking like normal product engineering.