I was able to download and have the app running.
Unfortunately I cant seem to find the next step.
I am running FreeNAS with a minos plugin, a splunk server and my workstation, so I get lost as to what points to where.
The instructions seem to indicated if you download the app there is nothing else to do. I think some of the instructions under install from source would apply, but then I am not sure which ones or where to apply them.
take a look at the details under https://splunkbase.splunk.com/app/1618/#/details. You'll need spigot or craftbukkit and to use the logToSplunk plugin with them. If you get stuck chime in here again.