tl;dr: Hister is a self-hosted, AGPLv3-licensed search engine that indexes the full content of web pages, local files, browser history, and crawled sites, storing everything on a server you control with no telemetry or mandatory cloud. It supports field filters, wildcards, negation, aliases, and optional semantic search, and is accessible via web UI, terminal, CLI, HTTP API, and MCP server for AI assistants. It runs as a single binary with SQLite or PostgreSQL, and offers browser extensions for automatic indexing of visited pages.