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
A few years back, I made a python program that searched free-for-commercial-use Google Images and auto-adjusted them to fit Amazon Merch shirts and uploaded them to Amazon. This was, of course, a violation of their terms of service.