Dev builds Capi, a kids' emotion-story app, in a weekend with GPT-6 Astra and fal Agent
noahsolomon · x · 2026-09-09
Developer radilson spent a weekend combining GPT-6 Astra, fal Agent, and H3 Max to build Capi — a tiny story-world app for moments when kids have big feelings and parents need different words. By lunch, his 3-year-old was already asking for another story.
The post is a live demo of how fast the new agent-plus-model stack lets a non-full-time developer ship a usable, personal app: from idea to working product (story generation for real family use) in hours.
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