this has a lot of multiplatform multiplayer potential as well
if you wanna play a multiplayer game with a friend who is currently on a mac/linux device that the game can't run on, you can play with them
you can also play with them if they're on an android/ios device
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of course, this is restricted to splitscreen/local multiplayer, but still, it has a heck of a lot of potential.
I can imagine this being used with a lot of older emulated games that don't have online multiplayer.