Little programs or scripts or automations you’ve created ad-hoc to solve a particular single use case
I have lots of shortcuts i make on my phone and I have one i love that detects when bluetooth accidentally or purposefully disconnects from my speaker and reconnects it and fixes a playback glitch so its back to playing properly
I wrote a coin flip script that randomly calls
qlmanage -p tails.jpg / heads.jpg(Mac) to flip a virtual coin.