Not to detract from what seems like an intricate project, but peon-ping (https://www.peonping.com/) has a ton of voice packs now and one of them is Mr Meeseeks. My only issue with it so far is that it's not easy to mix per-project and global voices. It usually takes trying to install from zero and there is an approach I've found using symlinks. It has come quite a long way and having some kind of audio cue has been a game changer.