I can't find the source on the site. Can you please add a github link? https://github.com/nehbit/aether
I had to go search in some reddit thread to find it since if you search for aether you get a legacy project from Eclipse.
Also the source on github does not appear to be up to date with the version that is download from the site. (2.0.0-dev.6+1811211332.746ec27e.d on git hub and the one I downloaded is 2.0.0-dev.11+1903010147.3fd391a3)