Okay, this is probably just me being a massive idiot, and I'm just missing something in the Connection guide. BUT I can't seem to figure it out. I'm running Mac Mojave (10.14.3).
So I downloaded the retail client from Blizz, and then downloaded Epsilon's Tiny Client. From what I understood on the connection guide, I was supposed to basically find-and-replace all the retail folders with Epsilon ones (ie: dbFilesClient, Interface, WTF), which I did. Now, I have two apps: one retail ("World of Warcraft") and one that came with the EpsilonWoWStarter folder ("World of Warcraft Patched"). The retail app opens fine, but gives me a 'You Have Been Disconnected' message when I try and log in. The Epsilon app doesn't open at all: I get a finder notification that says "The application “World of Warcraft Patched” can’t be opened."
So.... what am I doing wrong?! I'm not really tech savvy at all, so any help is super appreciated.