Wow, yes EoF runs on macOS Mojave!
Edit: I tried an old project first (that I've run with Wine) and seemed like editing worked. When trying to create new project the guitar.ogg gets created into "/Applications/<artist> - <title>" and EoF doesn't find it. I'll try to edit the created eof.cfg to get the paths right.
Edit 2: I tried to put the source wav to my eof/<artist> - <title> directory and choose option use existing folder but I got the same issue that guitar ogg is not found. I couldn't find a way to trick EOF to work for start from scratch.