I will reveal that I have played far more of Shenzhen solitaire than Shenzhen I/O itself. Zachtronics made a stand-alone version of the game[1], but there's also a fanmade version here:

https://shenzhen-solitaire.tgratzer.com/

Which I find more enjoyable, both because it's online so it's easier to reach from anywhere, and also because I feel like the version of the solitaire inside the game is a bit... heavy feeling. Like there's some sort of input delay? Anyhow, I must have around 3000 completed games of solitaire across my devices.

[1]https://store.steampowered.com/app/570490/SHENZHEN_SOLITAIRE...