When you run the client, you’ll see the path to your config file. You will need to manually edit the file, as there is not yet a way to make changes from the gui.
sound.volume = 7 # You can use a range of 0 - 10
sound.notify.turn = yes # Use "no" to disable your turn audio notification
To use a language that is different from your system’s default:
language = de
The value must match the name of a .po translation file, without the .po
ending.
You can see the available languages in the po directory.