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Black Hole

Black Hole is a free, open-source Mac app that keeps tasks, a focus timer, a daily notepad and today's calendar in your Mac's notch. Hover the notch (or press Option-N) and the workspace drops out; move away and it disappears. Everything is stored locally. There are no accounts and no tracking. Works with Claude, ChatGPT and Cursor over MCP. Requires macOS 14 or later on Apple silicon. MIT licensed.

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