Question is in the title. I set it up right now to gather everything in one project but that will hide any new entries I do as a submission right? New here on Itch and to game jams.
Yeah I would say submit each module as a separate project, if you want them to be more visible--and that's what I want! If it's one bigger thing with some add ons, then submitting as one project makes more sense. But it's up to you!
((Small point: There is a theoretical limit to how many projects one can upload to itch, but that shouldn't matter for you atm and you can always rejigger things later.))