If you run Home Assistant, you've already solved the hardest problem in the smart home: talking to three thousand kinds of device. Lights, locks, sensors, vacuums, obscure Zigbee gadgets from a brand that no longer exists — HA speaks to all of them. And since 2025 it ships an MCP server, so an AI assistant can already reach in and control them.
So when a project like DoSync shows up describing itself as a protocol between AI and physical devices, the fair question from anyone in the HA community is: why would I need that? I already have HA, and now AI can talk to HA directly.
That's the right question, and I want to answer it honestly — including the part where the answer is "you probably don't."
What Home Assistant is, precisely
HA does three jobs: it integrates with devices, it runs automations, and it gives you a UI. The first job is the one that matters here, and it's genuinely excellent. HA is the richest device-integration layer that exists. Nothing should try to replace that, and DoSync doesn't — it reads devices from HA through a bridge that's already in the repo.
