I have several non-memorization type things. Some personal "get better" things, like... "I tell stories badly. I should avoid them." where I rate it a "2" for a "yeah, I did ok this week" or "1" if I transgressed. I put that into a deck that has a maximum review time of a week. I have other decks with similar things that expire in no more than a month, or a quarter.
For the tech things, the prompts are things like:
"Do an exercism.io exercise in <language>" where language is one of the programming languages I'm studying or want to keep "fresh"
"Write the basic 'counter' in React. With class compoments" or "... with functional components".
Things of that nature. Stuff I can get done in a half hour or less.