zen is a self-hosted notes application. Features: - Single Go binary. - Low resource usage. - Standard Markdown files, local SQLite database. - Organize with flexible tags, not rigid folders. - Markdown features like tables, code blocks, task lists, highlights, and more. - Full-text search with BM25 ranking. - Import and export data with full portability. - Templates. - Pinned notes. - Archive and soft delete notes. - Minimal dependency footprint. - Automated backups.