Kuku is a truly native, local-first markdown editor for macOS — built with Tauri, not Electron. Notes are stored as plain .md files with wikilinks, backlinks, and graph view. Its AI agent doesn’t just chat — it searches, edits, and links your files, with every change shown as Cursor-style diffs you can review. Fast, lightweight, offline-first. No cloud. No lock-in. Obsidian + Cursor, without Electron.