How to use Rasa X with custom frontend

Hi,

is it posssible to use Rasa X with a custom frontend? Right now I use the Rasa REST-Channel with a chat window which is deeply integrated in my app (it also passed a very importent unique id as “sender”-value).

Is it possible to use Rasa X in that case? I wasent able to find documentation about this, only some vague hints to “external connectors”

Thanks in advance