LumiCube service for the Raspberry Pi.
You can build this using Maven (either from the command-line, or e.g. using NetBeans).
The resulting .zip (containing all the JAR files) can either be extracted and run directly, or packaged with a JVM into an AppImage using build.sh.
Note: This last step requires Docker (and therefore also root permissions).
Grafster - This also only seems to work on x86 Linux, but the resulting AppImage works OK on Raspberry Pi