You can use features of tmux to implement a Turing-complete instruction set, allowing you to compile code that runs in tmux by moving windows. I feel like I really have to emphasise this: I’m not running a command-line program in tmux, or using tmux to launch a program. I can get tmux to run real code by switching between windows. Watch a demo of it in action below or on YouTube: This whole mess started when I solved an issue I had with a helper script using the tmux wait-for command. I thought ...