... I can't believe that DMX is before ArtNet in the priorities of GarageCube. If you put ArtNet compatibiliy to Modul8 you put instantly DMX compatibility. Also with ArtNet you can do Video LED Mapping and in the other side DMX needs alot of hardware try to do that...
In this link you can find hardware to connect MIDI hardware to DMX and ArtNet tools:
With the Lanbox you can connect DMX to Ethernet and control MIDI software with a LightDesk:
This one include free software and with Isadora you can create a DMX data to MIDI conversion. In my case I need to use Isadora to process the MIDI data and send it to Modul8 like CC and MIDI notes.
Please GarageCube people, put ArtNet in the future aditions to Modul8.