Descriptions:
Stephanie Nyarko documents how she built five production AI applications in 90 days using Claude Code, Vercel, and a consistent API stack — all for under $50 in direct tool costs. The five apps cover meaningfully different problem spaces: Adesua.ai (a full-stack project-based learning platform with an AI coaching layer), AI Skill Packs (an e-commerce store with Stripe checkout and customer accounts), a business audit tool embedded in her consulting site, an on-demand infographic and carousel generator, and a utility for importing conversation data from ChatGPT into Claude.
Nyarko provides specific build times — nine full working days for the most complex app, a single weekend for simpler ones — and is candid about what took the longest. For Adesua.ai, the hardest part was not the frontend code but writing the AI coaching prompt, specifically getting the model to ask questions rather than give answers. The audit tool on her consulting site runs on Claude Opus 4.6, while the AI coach uses the open-weights Kimi K2 model. She also details cost structure honestly: Vercel at roughly $20 per month replaced a $400 per year Siteground hosting bill, and Stripe’s commission-based pricing meant no upfront cost for payment processing.
For solo builders and consultants evaluating vibe-coding as a serious production strategy, the video offers a realistic picture of what is achievable in terms of complexity, cost, and timeline without a development team — and where the real difficulty actually lives.
📺 Source: Stephanie Nyarko · Published May 12, 2026
🏷️ Format: Workflow Case Study
