Tmux

sharing between different account involves using a "socket" -- a special file that can be configured to be sharable.

 tmux -S /tmp/shared new -s shared
 chgrp users /tmp/shared

Where shared is the name of the session, and users the name of a group that everybody is already a part of. See groups.

For the **others**, you would connect with:

 tmux -S /tmp/shared attach -t shared -r

For a read-only session, or:

 tmux -S /tmp/shared attach -t shared

For a full session.

Detaching

 ctrl-b d

Sources

• https://www.howtoforge.com/sharing-terminal-sessions-with-tmux-and-screen#sharing-between-two-different-accounts-with-tmux