Lex Gallon opened merge request !14: Check for nested tmux session at hpc-team / smux

Lex Gallon
2024-09-24T16:00:36+10:00

If user is already inside a tmux session on a login node, smux quietly failed previously. This commit addresses that by warning the user if they are already in a tmux session, and not even allowing them to create a new session or attach to an existing session until they quit tmux.

Also add instructions on how to actually deploy this, which I've based off of clusterinfo.