Any wifi trackpad would probably work, but I’m specifically looking to avoid replicating a mouse and keyboard. The thing I liked most about Kore is that it was, for all intents and purposes, a TV remote with some advanced features. I’ve found Yatse, so I’ll give that a shot since the player and the server are both running on the same machine. If not, perhaps some jiggery pokery with Kore might adapt one to the other.