Clone the repository, cd to it and run the following command:
docker build --progress=plain -t android-sdr-kit .This will give you an android-sdr-kit image that you can use to either create a containers with both tools and libraries, or simply extract the binaries for use elsewhere.
If you wish to run the container to build an app, use docker run --name YourContainerName -it android-sdr-kit /bin/bash -l
The -l being important to load the environment variables defined when the container was built.
Credit to @Aang23 for the help getting some of the more annoying libs to work and for his work on getting volk fully working on android.