I've been enjoying a few Slack communities lately, and was about to offer to set up a Slack for the lines community, but paused as I considered various problems public communities have been having with the free level of Slack.
That's when I ran across Gitter, which seems like a more appropriate solution for an open source community anyway.
So I signed in, and realized, it was already set up! You can join us here:
For those moments when you feel you need llllllll to be a bit more "real time".