Summary
Nate Herk walks through building “Snag Time,” a fully functional Calendly clone, using AI coding agents — primarily Codex and Claude Code — in roughly one week and with just five high-level prompts. The finished app rivals the core feature set of Calendly (valued at ~$3 billion) and Cal.com (~$150 million raised), including live Google Calendar sync, custom branding, multi-member workspaces with admin permissions, and Stripe-powered paid bookings.
The video is a live screen demo covering the entire user flow: creating event types, sharing booking links, blocking availability, and processing payments through Stripe’s sandbox environment. Herk is candid about the gaps — notably that AI agents caught code bugs well but missed UX details a human would catch immediately, such as unintuitive click targets — and he revisited the interface for those fixes manually.
The build is offered for free via his School community, with a setup guide that covers connecting a Google account, a backend database, and Stripe API keys before deploying to a public domain like Vercel. For developers and automation builders curious about the real cost and ceiling of vibe-coding a production-grade SaaS tool, this video provides a grounded, reproducible example of what AI-assisted solo development can deliver today.
📺 Source: Nate Herk | AI Automation · Published August 28, 2026
🏷️ Format: Hands On Build
