Regarding playing on phone: one improvement I have in mind, is to have the stock (aka reserve) and waste piles be on the right side. That would make them easier to reach for right-handed players, I guess. What do you think? (The foundations piles would inversely go to the left. They are rarely manipulated, given that one can double-tap a card to automatically send it to its foundation pile.)

Thank you again for the feedback, that’s always very appreciated!