Isn't tmux just a tool so that when you get disconnected, you still can come back to the process or command you were running, such as a Rails or Dj...
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A certain kind of programmers. The ones who love to do a lot of stuff at the same time. And the ones who love to shape their environment to the their liking.
You'd be surprise what people can do with
tmux. Likevim,tmuxis one of those tools that has a crazy amount of configurations and plugins that can do anything if you're willing to put the time to make it work.