oldschool -- a crosscloud chat program that runs in a terminal
see /HELP for available commands
The basic idea is that everything you type gets posted to your site (think microblog). Meanwhile, anything posted by any of your contacts gets displayed, if it passes your current filters.
It's called "oldschool" because I was into systems like this a long time ago, back in school (rpi.edu). Of course, they used different protocols, with somewhat different properties.