Cheatsheet Pages / Terminal Superpowers
Watch the machine while you work — btop in a tmux pane
One pane runs the work, another keeps CPU, memory, disks and processes in sight.
On Debian/Ubuntu, most of these tools are also one sudo apt install away.
brew install btop # macOS — or: sudo apt install btop
btop # try: that's it, just look at it
brew install tmux # macOS — or: sudo apt install tmux
tmux new -s work # try: new session named "work" (Ctrl-b % splits, Ctrl-b d detaches)