I guess someone beat me to one of the pet projects I had in my pile (although probably far too literal of a recreation, I would have made some artistic liberties to make it distinct): https://github.com/processone/fluux-messenger

I'm sure OMEMO or other amenities will naturally follow, in time.

The gTLD expansion [lottery] itself is practically like AOL keywords, just with an extra word needed, given companies can just own their own brand TLD now e.g. .google, .microsoft, .netflix, .pfizer, .scjohnson, .skype(?), .toshiba, .vanguard, .vistaprint, and so so so many more)