
Ghostbar
Native Swift macOS AI chat invisible to screen sharing
What it does
Ghostbar is a macOS menu bar AI client invisible to screen sharing. Zoom, Teams, Meet, OBS, QuickTime — nobody sees it but you. Uses NSWindow.sharingType =none to remove the window from macOS's compositor before any recorder touches it. What makes it different: → Native Swift — ~5MB vs 150-500MB Electron alternatives → Ollama, OpenAI, Claude, OpenRouter, LM Studio, llama.cpp → On-device voice input via Whisper → Zero telemetry, no account, MIT license, free forever
Does the same job
all alternatives →
- GPGhost Pepper – Local hold-to-talk speech-to-text for macOSApr 2026 · github.com · ▲467
I built this because I wanted to see how far I could get with a voice-to-text app that used 100% local models so no data left my computer. I've been using a ton for coding and emails. Experimenting with using it as a voice interface for my other agents too. 100% open-source MIT license, would love feedback, PRs, and ideas on where to take it.


GhostDeskApr 2026 · ghostdesk-iota.vercel.app · ▲88Your invisible AI co-pilot for interviews & meetings

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Hey HN, Henry here from Cactus. We open-sourced Needle, a 26M parameter function-calling (tool use) model. It runs at 6000 tok/s prefill and 1200 tok/s decode on consumer devices. We were always frustrated by the little effort made towards building agentic models that run on budget phones, so we conducted investigations that led to an observation: agentic experiences are built upon tool calling, and massive models are overkill for it. Tool calling is fundamentally retrieval-and-assembly (match query to tool name, extract argument values, emit JSON), not reasoning. Cross-attention…
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