Many screen-sharing tools still struggle with Wayland. If you experience a black screen, try switching to an X11 session at the login screen.

Available as an AppImage, making it compatible with Ubuntu, Fedora, Arch, and more.

If you want to turn your Linux PC into the "Server" to extend your desktop to an iPad, Android tablet, or another computer, these are the current industry leaders: 1. Deskreen (The Modern Standard)

Create a configuration file in /etc/X11/xorg.conf.d/ to define the resolution of your "fake" second screen.

Weylus is specifically designed for users who want to use a tablet as a second monitor with stylus support.

Artists using a tablet as a drawing pad for Linux apps like GIMP or Krita. 3. Virt-Screen

If you have a Windows PC and want to use your Linux laptop or desktop as a second monitor, you don't need a complex install.

It creates a virtual display output in your system settings.

 mooncalc.org
reverse calculation
from the moon altitude/azimuth at time
Moon Altitude: 0° - 90°
Moon Azimuth: 0° - 360°
Period calculation:
Accuracy: