Hi Krasimir!
Apologies for the late reply, I'm finally getting around to msgs, posts this weekend.
I intentionally left that aspect of the rules rather vague tbh =p. What would be most fair, is if most/a significant chunk of the demo or game's development happened during the jam's duration, regardless of actual start time, or intended jam.
But with so few days left, I'm honestly happy to have ANY submissions, AS LONG AS THEY ADHERE TO THE THEME.
So please feel free to submit your game!
Cheers,
Soul