It worked out of the box with the new Lutris script and the black box
After the first configuration check I also had to remove the line "maxshader": false.
Maybe a sink for cards, too. There are thousands of unwanted cards like "Mumbo Jumbo" in the game. There could be a shop in the marketplace where you can sell bulk card's for bfp or gold. Maybe count in the rarity of the card to get more in exchange. Or just shred them to get a achievment for 100/1000/5000 shredded cards with an reward. When the reward is good enough, people are maybe willing to buy 3bfp card's from the marketplace or other players to get the achievment.
Thats not an answer for gold so