I don't use it often, but I did use it twice to get a misbehaving apache service restarted while on the bus/train to work, saving me about 20 minutes of downtime before I could get in front of a better keyboard.

There's a widget addon that makes doing those sorts of things one-tap: https://wiki.termux.com/wiki/Termux:Widget

Though naturally once I created a widget to kick apache, it never failed again.