Show HN: Mecum, open source Mac app that lets agents use ANY desktop software

Category: devtools

Tags: macos, agents, desktop-automation, mcp, swift

Score: 7.5/10 (Innovation: 8, Technical: 8, Documentation: 7, Utility: 7)

Braus (formerly Mecum) is an open-source macOS app that lets AI agents interact with desktop applications through a virtual display, even when those apps lack APIs or accessibility trees. It uses a Swift-based driver, perception engine, and memory system to move app windows off-screen, route agent input, and provide structured text representations of the UI, enabling agents like Claude Code or Codex to work in parallel without disrupting the user.

Target audience: AI agent developers, macOS power users, automation engineers

Repository: https://github.com/ForteAI-Org/mecum · Swift · Apache-2.0 · 22 stars

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