Note: Requires a physical display to run, will NOT run on codespaces, ANY online terminal without a graphical display, or ANY ssh without X11 forwarding (Pretty much self explanitory but for the people who didn't know)
^^^
If you STILL don't understand, it basically means you have to run it on YOUR personal computer. You most likely will not be able to use it in a browser VM without a graphical interface or over SSH
gradlew runclient
and wait for it to finish compiling