Tmux is growing in popularity as an alternative to GNU screen for using terminals. Tmux provides better performance than screen and byobu according to benchmarks, loading in 15 seconds compared to 50 seconds for screen and 25 seconds for byobu. The tmux-powerline plugin enhances tmux with customizable status lines that can display real-time information like sales, stock prices, alerts, schedules, and more. A configuration guide for tmux-powerline is available online.