At our in-person game jams we often have a few teams creating board and card games.
This is going to be a bit different for a fully remote jam - but I strongly recommend giving Tabletop Simulator a look. It allows you to create all your components, cards, boards, etc. and then have players drag them around in the physics simulator.
The downside is that all players will need to own Tabletop Simulator - though for play testing etc. there's definitely a few people already signed up to the jam who own it and could help out. If you're happy with the game you end up with - you can even release it on Steam workshop.
Tabletop Simulator is available here for half price - though it has been going in and out of stock over the last few days.