Internet Relay Chat / IRC with IRSSI
Despite the existence of Slack, Discord, and Twitter, internet relay chat (IRC) remains the most important places to get real-time information from highly technical people. Servers are very easy to setup and take very little resources. Today the best IRC client is IRSSI.
“Your text mode chatting application since 1999. Integrates into the UNIX stack: Your window manager, your terminal emulator, your remote connection, your terminal multiplexer, your IRC bouncer, your IRC adapter.” (IRSSI.org)