Having built my own voice assistant (https://github.com/acatovic/ova https://github.com/acatovic/ova) and having tried many other services and models, I feel th

Having built my own voice assistant (https://github.com/acatovic/ova https://github.com/acatovic/ova) and having tried many other services and models, I feel the real win is when this is on-device, and by "on-device" I mean being very inexpensive to run on a phone, and not H100. I've now been using Pocket TTS which is super fast, and also Chatterbox and Fish Audio S2 Pro (on the Mac/PC), I feel we are so close, yet so far. The quality is amazing, but can we take this to the next level and make it run on mobile? What would it take?