Today's #FreeSoftwareAdvent is `tmux`, the terminal multiplexer.
I know that `tmux` will be second nature to many of you, but I've been gradually learning it over the last year (https://neilzone.co.uk/2025/06/more-tinkering-with-tmux/), and I find it invaluable.
Although I had used `screen` for years, I wish that I had known about `tmux` sooner.
I use `tmux` both on local machines, for a convenient terminal environment (from which I can do an awful lot of what I want to do, computing-wise), and also on remote machines for persistent / re-attachable terminal sessions.
