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Vibe coder shipping production AI tools solo. FastAI Health Coach is live on the iOS App Store (v2.12.2 in review). Android in Closed Testing ā Play production access applied. Just launched on Product Hunt today. The build: 5 AI/ML paths working together ā Claude Sonnet 4 (Coach reasoning), Claude Vision (meal photos ā calories in 4s), Voyage embeddings (cross-session memory), Claude Haiku (tier-routed classification), and a per-user statistical ML model that predicts weight trajectory from your own data. Vibe coding to me: Claude as pair programmer for what's been done before. My judgment for what's new ā Sonnet vs Haiku, embeddings vs fine-tuning, ML vs LLM. The bottleneck moved from typing to deciding. Build log: exafabs.ai/blog
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