Caret vs Dune

Caret brings system-wide AI autocomplete to macOS with a single keystroke: Tab. Unlike tools that require you to open a specific app or switch contexts, Caret operates at the OS input layer — any text field, any application, anywhere on your Mac. It reads the surrounding text for context and offers completions inline, with zero UI chrome. The implementation uses macOS Accessibility APIs to hook into the text input stack across all applications. Context is gathered from the active window's text content, and completions are generated via a cloud LLM (with local model support on the roadmap). There's no menu bar app cluttering your workflow — just Tab when you want help, nothing when you don't. The simplicity is the product. While Raycast, Copilot, and similar tools add layers of UI, Caret bets that the right abstraction is "Tab, everywhere." For high-volume writers, support staff, and developers who live in diverse tools all day, this is the kind of ambient AI that actually reduces friction rather than adding it.

Dune is a compact hardware keypad for Mac that detects your active application and automatically remaps its three keys in real time — no manual profile switching required. In GitHub it raises PRs and approves changes. In Zoom it mutes your mic and joins calls. In Claude Code or Cursor it triggers your agentic workflows directly from your desk. The device syncs with your calendar so meeting-join actions appear automatically before calls. It supports Zoom, Teams, and Google Meet natively. The maker community angle is notable: Dune users can program custom agent triggers to kick off any AI workflow from a physical button press. Dune topped Product Hunt's weekly leaderboard for the week of April 20 with 589 upvotes — a strong signal that developer-focused hardware AI accessories are a real market. This isn't just a fancy macro pad: the context awareness removes the mental overhead of remembering which key does what across 12 different apps.