I want to share something that we have been working on. mavlink-kotlin - A modern MAVLink library for the JVM written in Kotlin.
We’ve been working on it for a few months now and have started using it for production. You can go through the documentation to know why we felt the need to make it and how it addresses the problems with other JVM MAVLink implementations.
It is completely open-source and available on Maven Central. Use it to make cutting-edge Android GCS or even use it on stand-alone JVM applications. Kotlin Multiplatform support may be added in the future.