Ruby and Ruby on Rails Slack group.
Invites are manually reviewed and accepted to avoid abuse so it may take a while until you get accepted.

Popular Channels

6546

#general

Welcome rubyists! Invitation form — [URL]
This channel is for team-wide communication and announcements. All team members are in this channel.
6391

#random

A place for non-work banter, links, articles of interest, humor or anything else which you'd like concentrated in some place other than work-related channels.
2230

#jobs

Please specify remote and timezone preference where applicable!
1990

#rails

Ruby on Rails related
1619

#code

All about code
1399

#beginners_and_mentors

938

#devops

ssh [email protected] - All DevOps related talk.
265

#blab

263

#_general

Timezones

Number of members by timezones in UTC. DST applied.
1304 Slack groups are listed on Slofile.