Has anyone tried running Home Assistant on an old Android device?

I’ve seen a few discussions about running Home Assistant or related local services on Android devices, and I’d like to open this up as a community discussion.

This isn’t a product pitch or a market survey. I’m mainly interested in hearing what people have actually built, tried, broken, or repurposed.

Examples:

  • old Android phones used as Home Assistant helpers
  • tablets as wall dashboards
  • TV boxes or other Android devices running local automation or gateway-style services
  • Termux / proot / rooted setups
  • experiments that worked, and ones that didn’t

If you’ve tried something like this, I’d love to hear:

  • what device you used
  • what you managed to run
  • what worked well
  • what was frustrating or unstable
  • any screenshots, repos, notes, or write-ups you want to share

If you haven’t built anything yet, that’s fine too. I’m also curious whether this is a direction the community thinks is worth exploring, and what would make the most sense.

I don't suggest it for any production use, but playing can be fun I guess.

Maybe not for a HomeAssistant server, but the Android platform/ecosystem certainly is useful for the sensors it exposes and the display capabilities if your browser and device is compatible. This is extensively discussed in the HomeAssistant documentation, and the Companion app for Android devices. Start your research there.