No, that I hadn't discovered yet, thank you so much! Sounds really interesting. I'll have to dabble around in it a bit to see what works best! At this moment, I think using the card system would be ideal, but I'll need to get to know Decker better first 😁.
The game I envision goes something like this: you have to find the way through a story which is built up by different characters' point of views. The story only progresses after you met certain conditions, like having visited a location of having unlocked a core memory.
When you select a character, you can visit certain places on a map which are not always accessible to other characters. You also have access to their thoughts and memories which you can explore, and make certain choices that will shape what happens after. (I've already made a thorough schematic overview of all the choices, consequences and endings.)
I like the idea of cards with reading material which lead to several other cards, because this would become some kind of reading puzzle to the player. They'd have to go search deep into the story to find a way to progress, while finding out secrets and lore. But maybe the visual novel module would come in handy here, I'll have to see. Other suggestions are still welcome of course! 😊