Oh, I understand that. Meanwhile, I'll be thinking up other good solitaire games you can add.
I think I mentioned that I've got an old book listing more than 100 games, and that's not counting minor variations, like how many times you can draw or relaxing the rules about moving piles. But most of them probably aren't worth adding. Wikipedia also has a huge number of solitaire games, including a nice variant of "clock" that actually gives you some choices and some chance of winning. It keeps the attractively different card layout:
and if my description of crazy quilt was hard to follow, it's got the picture:
Hmmm, if you want to make a way for people to compete against each other, you should write Russian Bank. That's a great game. But I think that would be a different application, because (I think) you need two people to play in real time. I don't know if it would be feasible to play against a computer. But either way, having an opponent makes it different enough that I would distribute it as a different game, although I suspect it could share a lot of the same code.