is there any open source application that allows me to use my old laptop as second monitor for my main pc?

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Barrier second-screen KVM Wifi Keyboard

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  • barrier

    Open-source KVM software

    • Maybe barrier plus VNC/RDP ? It's a bit convoluted but may work:

  • deskreen

    Deskreen turns any device with a web browser into a secondary screen for your computer. ⭐️ Star to support our work!

    • There is! Its called Deskreen. You can use any device that has a web browser to access the second display. The image quality is much better than VNC.

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