Make your iPad/tablet/computer as a secondary monitor on Linux
VirtScreen is an easy-to-use Linux GUI app that creates a virtual secondary
screen and shares it through VNC. VirtScreen is based on PyQt5 and Twisted
in Python side and uses x11vnc and XRandR.
Enable snaps on Raspberry Pi and install virtscreen
Snaps are applications packaged with all their dependencies to run on all popular Linux distributions from a single build. They update automatically and roll back gracefully.
Snaps are discoverable and installable from the Snap Store, an app store with an audience of millions.
Enable snapd
On a Raspberry Pi running the latest version of Raspbian snap can be installed directly from the command line:
sudo apt update
sudo apt install snapd
You will also need to reboot your device:
sudo reboot
After this, install the snapd snap in order to get the latest snapd:
sudo snap install snapd
Install virtscreen
To install virtscreen, simply use the following command: