Hello. I'am currently trying to develop an android app that using Holochain for the communication between clients. I was able to build the Rust libs according to [this](https://github.com/holochain/holochain-rust/blob/develop/doc/holochain_101/src/holochain_across_platforms.md). But i don't really know what's next. Does anyone have a more detailed documentation or an example code that could help me out?