Build Instructions
This section of "Axus dev" is dedicated to instructions for building software on the Windows platform using zero-cost software.
Configuring and compiling software can be tricky. The version of dependencies can matter a lot. If you distribute GPL software, you must distribute it's source code. Distributed code must compile to the software you are distributing.
Building Java and Android programs is easy once configured. Gradle error messages were not very helpful by themselves, when things are missing or not configured correctly.
I've found a couple sites with great build instructions for fundamental libraries you will want: