Aether: A local Android assistant built with Gemma 4

This is a submission for the Gemma 4 Challenge: Build with Gemma 4

What I Built

I built Aether. It is a local Android assistant. It replaces your default cloud assistant with a completely offline alternative. You trigger it just like normal. You hold the power button and Aether pops up instantly. Everything happens directly on your device.

The app registers natively as your default Android assistant using the ACTION_ASSIST intent. It uses the built-in Android speech recognition for voice input.

For the foundation, I used the open source FriedGPT codebase. I stripped out all the old cloud API routes to create a clean boundary for local inference. Your chat history and text data stay entirely on your phone.