This is very cool. I have to wonder though what you could do with it, like I don't mean to devalue the OP but I see a lot of people here discussing the possibilities (inventory management etc.), but what is there to stop you from doing that with traditional modding? I guess with consoles this might be useful (although I heard consoles can play PC mods this time around), but as far as the PC goes its probably far easier just to use make an actual mod for the game that does what you want instead of bouncing it around wirelessly with a relay.
If people downvoting me could explain why, that would be nice. I'm not trying to downplay the OP's creation and I think it's really cool. I was trying to reply to the people in this thread because I feel like they are praising it for the wrong reasons. It's not like we can finally access your inventory programmatically and script it for the first time ever, you could already do all of that stuff with regular modding, and it'd probably be a lot easier too. Maybe I'm wrong about that, but if so I'd like to know how.
As an analogy, to me it'd be like praising WIFI for finally allowing us to communicate between computers on a network.
Didn't downvote, am the author of the write up. Since I don't run Windows in the house any more, there's little opportunity for mods (I'm playing on the PS4). Tinkering with the network was fun in its own right.