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 made a browser extension to make downloading Minecraft mods easier. It would scrape the curseforge page you’re visiting, search for the mod on modrinth, and redirect you if it found one. It was actually very useful when I needed it, I even put it on the extension stores and it gained some users.
I also have a small collection of random python numpy and matplotlib utilities. I need to do some basic graphs and data analysis for uni, and this simplifies it a lot.