Mind you the issue here is that an old Android phone will likely have an outdated kernel. Even if there is a custom ROM for it. Leaving you vulnerable, which isn’t great.

Also https://github.com/acon96/home-llm/blob/90c0edc0907e4567eeca89a6f89b43c0b0b807eb/docs/Setup.md

Home Assistant can absolutely do that. If you are ok with simple intent based phrasing it’ll do it out of the box. If you want complex understanding and reasoning you’ll have to run a local LLM, like Llama, on top of it