Watch Me Start an Online Business With AI in 85 Minutes

2 Sept 2026 · 85 min
1:25:02

In this 85‑minute live stream, Chris Koerner demonstrates how to create and launch a niche SaaS product using AI‑driven "vibe coding" tools. He starts by identifying a personal pain point – the cumbersome process of collecting liability waivers for youth activities in his LDS ward – and decides to build a digital waiver‑signing solution called OnlyWaivers.com. He purchases the domain, then uses Replit’s new Agent 4 (powered by Claude) to generate prompts that code the app, set up integrations (Stripe for payments, SendGrid for transactional emails, Google Analytics and Meta Pixel for tracking), and configure the user flow (event creation, link generation, signature collection). Throughout the build, he iteratively refines prompts, adds branding, and fixes bugs such as sandbox Stripe mode, missing contact‑form integration, and pixel setup. Simultaneously, he creates a marketing funnel without leveraging his existing audience: he crafts Reddit posts, Facebook‑group posts, and, most importantly, AI‑generated Facebook ad campaigns using Claude to write copy, set budgets, and A/B‑test variations. He monitors ad performance in real time, adjusts targeting to focus on Utah (high LDS concentration), and optimizes cost per landing‑page view. After a few hours of ad spend (~$100) and debugging, the site goes live, a real customer from Idaho purchases the $13 yearly plan, confirming the end‑to‑end flow. Chris reflects on the cost of acquisition, the value of the first dollar, and the overall feasibility of building and selling a product entirely with AI tools in under two hours.

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