Show HN: Xtriever – offline RAG retrieval on a phone

AI Digest

Xtriever 是一款离线 RAG 检索引擎，可在手机和笔记本上运行，无需网络。通过四阶段混合检索提升准确性，支持多语言调用。

Xtriever is an offline RAG retrieval engine for phones/laptops, using four-stage hybrid search to improve accuracy with multi-language support.

Key points

• 离线运行无需网络，适用于无服务器场景 Offline operation without network dependency
• 四阶段检索融合词法与密集向量搜索 Four-stage hybrid search combining lexical and dense retrieval
• 支持 Rust/Python/Swift/Kotlin 多语言调用 Supports multiple programming languages
• 检索结果具备降级机制和确定性输出 Deterministic results with fallback mechanisms

Takeaway: 离线RAG检索技术突破设备限制，多阶段融合提升搜索质量。 / Offline RAG retrieval breaks device limitations with multi-stage fusion for better search quality.

Why it matters 展示移动AI本地化处理的新范式，对边缘计算场景有实践价值。