I use USB to mixer rather than mini Jack output.
Ive got my master iPad on the piano with a right angled USB-C extension to a hub with 2x USB A, hdmi and power delivery return.
Luckily I have an older iPad (for hosting) that lives on a mic stand clamp for when I pickup the guitar …… yet to setup but it’s on the cards
Perhaps find a hub that has all the outputs you need and run an extension off to a more stable place?