Announcing msgvault: lightning fast private email archive and search system, with terminal UI and MCP server, powered by DuckDB

I’m thrilled to announce msgvault , a new side project I have been building over the last two months with the assistance of many coding agents and some new agentic engineering tools I created (like roborev , a continuous agentic code review system). TL;DR msgvault is a local-first storage and retrieval engine for slicing, dicing, and querying a lifetime of email and messaging data in milliseconds.…