I designed and built a native iOS breathing app (SwiftUI) with Claude Code in 10 days, from PRD to a working app on iPhone, now in daily personal use, with AI voice guidance from ElevenLabs.
I documented the vibe coding process in the iThome Ironman 2026 competition (Taiwan's annual 30-day tech writing challenge, Vibe Coding track), publishing 30 consecutive daily articles on building products with Claude Code and Codex, reaching 1,200+ views.
The idea came from a real pain point from me, design teams share articles, videos, tweets in Slack or Discord, but it lives everywhere and nowhere. You can never find it when you actually need it.
Inspired by Andrej Karpathy, he proposed a personal LLM knowledge base and shared it on X.
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