Issues

All OSes

It doesnt launch / Crashes on launch

Check if you are using java 11 or 1.8 to launch the installer
16 and 15 is not supported because it contains some changes that break (insta crash) the code

MacOS

I Cant run the installer what to do?

Download this (sh script made by nad#7811) then do what the instruction says

Download the following SkyClient_Mac_Install.zip with the shell script inside. Put it on your desktop and extract it.

Next right click on the folder and click New Terminal at Folder

Then do:
chmod +x ./install.sh

Finally do ./install.sh

What is "New Terminal"/"New Terminal at Folder"