Hello,
I have written a guide for those who would like to add wine to their RetroPie emulator list.
It works for Raspberry Pi 3B+.
You will basically need to install box86, xserver and xinit and learn how to change screen with the legacy driver.
All the detail is on my blog article:
https://thepigamer.blogspot.com/2021/01 ... under.html
I used WineHQ logo to set my emulator entry on my Pi.
Hope this guide can be for interests for you,
Feedback appreciated!