Hey, thanks for asking!
The short answer is… any of the above!
To elaborate a bit… The end goal of the jam is to have a fully keyed map of a city district. So when the players ask that dreaded question - “what’s in this random house?”-, the GM has an answer!
You have 2 a5 pages, so it’s a pretty limited space. There’s no need to go overboard. I’d be grateful if you wrote down a single NPC statline with a description and motivations, and nothing else.
If you’re struggling for inspiration I’d recommend starting with a random NPC. Either with the generator I linked in the Resources tab, or using the Notable Denizens/Secrets tables from the Swyvers core book.
I’d also recommend joining the Discord. Somebody has been posting examples from their submission, which might help with layout queries.