[Question] Does AndroidWorld require a GUI or does it support headless mode?

Hi,

I have a question about the runtime requirements for AndroidWorld. I'm planning to use it for an online training task, so I would need to run it in a headless environment (without a GUI).

I noticed in the README.md that the example command to launch the emulator is:

```Bash

~/Library/Android/sdk/emulator/emulator -avd $EMULATOR_NAME -no-snapshot -grpc 8554
```
This command does not include the `-no-window` flag, which suggests it might launch a graphical window.

Could you please clarify if AndroidWorld requires a PC with a graphical interface to run? Or is it possible to run it in headless mode (for example, by adding the -no-window flag)?

If headless mode is supported, are there any specific configurations I should be aware of for this kind of setup?

Thank you!