GitHub - peetzweg/opendisplay: Free, open-source Sidecar/Duet alternative — use your iPhone or iPad as a true second monitor for your Mac over USB or WiFi. Low latency H.264, Retina HiDPI, touch input.

Why do I see the purple screen-recording indicator in the menu bar? That's a macOS privacy indicator shown for any app that captures the screen — Duet, Luna, OBS, and Zoom trigger it too. Apple Sidecar doesn't, only because it's implemented inside the OS rather than on public capture APIs. It cannot (and shouldn't) be hidden by an app; it's how macOS tells you a capture is running. The Mac app doe

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iPhone/iPad/macOSをMacの外部ディスプレイとして使うためのオープンソースアプリ。 Mac側のSenderが`CGVirtualDisplay`で仮想ディスプレイを作り、`ScreenCaptureKit`と`VideoToolbox`でH.264配信する。 USBまたはWi-Fi接続、HiDPI表示、タッチ/スク