>>342585979
joycons don't have positional tracking (unless i'm wrong?), and gyro-only positional tracking sucks balls, so phone wouldn't do much good here either.

with this hardware, i guess you could try using this meme camera body tracking that was mentioned here couple times [spoiler]mostly for being priced as high as old kinect[/spoiler], run phone as webcam, and then try connecting joycons to pc and sending their input to steamvr for thumbstick/button input, but that would be one hell of a shit setup. still, if this kind of diy is your fetish, i'm not judging