Camunda Java SDK

I would like to build android native app that would connect to Camunda and let me see active user tasks and external tasks.

I have written command line tool to connect to Camunda using java script and that was super straightforward using camunda js sdk.

How should I go about doing it in native android client in java (/kotlin). Is there some minimal java SDK that I could reuse?

I am thinking about using nodejs sdk as a reference guide for how to structure my java camunda client and just build wrapper around REST calls.