How to Start only chat meeting?

Hi
I am using this code to send IM! to an opened meeting :

val intent: Intent =
    BroadcastIntentHelper.buildSendChatMessageIntent("*", "Hiiiiii")
LocalBroadcastManager.getInstance(requireContext())
    .sendBroadcast(intent)

The issue: it works until a conference has been created.
So I wanna have a meeting with chat only!
How to Solve It?

@saghul

Should I override JitsiMeetActivity and JitsiMeetOngoingConferenceService and whole package-private Classe4s and methods?