tmux, configured properly

Defaults are for people who have not thought about it yet. This environment has, and /etc/tmux.conf is not left on stock settings.

Prefix Ctrl-a, the screen-style prefix, not the default Ctrl-b.
Vi-style pane navigation: prefix h/j/k/l, plus Alt+arrow with no prefix at all.
Mouse support, 256-color truecolor, 50000-line scrollback, zero escape-time latency.
Session persistence across a full container restart, not just a detach, via tmux-resurrect and tmux-continuum.
A dead process cannot take your whole session down. If something in a pane dies, that pane shows exactly what happened and prefix + r gets you a live shell back in the same spot in under a second.

The full plugin roster, each doing one job:

Plugin	Job
tmux-sensible	The baseline settings everyone should start from.
tmux-resurrect / tmux-continuum	Save and automatically restore your layout, panes and running programs.
tmux-yank	A clipboard that actually reaches your system clipboard, on top of the OSC 52 bridge described in the clipboard section.
vim-tmux-navigator	The same `h/j/k/l` pane movement works seamlessly between tmux panes and vim splits.
tmux-open	Open a URL or file path straight from the terminal, no mouse required.
tmux-fzf	Fuzzy-search over sessions, windows, panes, and more.
tmux-power-zoom	One keystroke (`prefix Z`) to pop the current pane fullscreen in a popup.
tmux-better-mouse-mode	Scroll and mouse behavior that feels like a real terminal, not an afterthought.
tmux-sessionist	Session management that does not require memorizing session names character-for-character.

Full key reference, always current: run tmux list-keys from inside any session.