Permission to add Foundry VTT support?

Hi! Before I do it, I want to make sure this is okay, as I don't know what are the license terms for this game.

I'd like to try playing Magical Kitties via Foundry VTT, so I thought about creating the system myself, and if it works out well, share it as a community (free) package. I saw a post about Roll20, so I'm assuming this is fair use, but I want to be 100% sure. :slight_smile:

Honestly, as a cat and fantasy lover, I'm really enjoying this system. It's so cute, simple, and fun, I played it from my phone in the middle of the night the other day, when I couldn't sleep. All I needed was Apple Notes, a dice app, and the solo comic PDF. Thanks for making the comic free, by the way. I wouldn't have found the system so easily if it weren't for it. Now I own the digital deluxe bundle.

Thanks!