Meet EverOS: An Open Source Markdown-First Agent Memory Runtime With Hybrid BM25 + Vector Retrieval and Self-Evolving Skills EverMind has open-sourced EverOS, a local-first memory runtime for AI agents that stores memory as plain Markdown indexed by SQLite and LanceDB, featuring hybrid BM25 + vector retrieval, multimodal ingestion, and self-evolving Skills under an Apache 2.0 license. EverMind has open-sourced EverOS, a local-first memory runtime that stores AI agent memory as plain Markdown indexed by SQLite and LanceDB. It combines hybrid BM25 + vector retrieval, multimodal ingestion, and self-evolving Skills under an Apache 2.0 license. Here's what it is, how the architecture works, where the benchmarks stand, and where it still falls short — plus a runnable code walkthrough and an interactive demo. The post Meet EverOS: An Open Source Markdown-First Agent Memory Runtime With Hybrid BM25 + Vector Retrieval and Self-Evolving Skills https://www.marktechpost.com/2026/06/29/meet-everos-an-open-source-markdown-first-agent-memory-runtime-with-hybrid-bm25-vector-retrieval-and-self-evolving-skills/ appeared first on MarkTechPost https://www.marktechpost.com .