Show HN: AI Chat App on Durable Streams and Tanstack DB

Category: web-framework

Tags: ai-chat, durable-streams, prisma-streams, tanstack-db, bun

Score: 7.5/10 (Innovation: 7, Technical: 8, Documentation: 9, Utility: 6)

Open Chat is a local-first, multi-model AI chat app that demonstrates durable streaming via Prisma Streams, ensuring no tokens are lost even if the connection drops. Its innovative combination of durable streams, TanStack DB for UI state, and a typed data layer with Prisma Next makes it a compelling reference architecture for building resilient, real-time AI applications.

Target audience: backend devs, full-stack devs, AI/ML engineers

Repository: https://oss.chat/tour · TypeScript · MIT · 3 stars

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