Home Assistant

Home Assistant is the center of gravity for open-source home automation: thousands of integrations, powerful automations, and a core promise that your smart home keeps working when the internet does not.

It is also a deep rabbit hole. The UI has improved enormously, but ambitious setups still end in YAML, and the monthly release cadence means reading changelogs before upgrading.

• Runs on a Raspberry Pi, a NUC, or in a container.
• Companion mobile apps with presence detection.
• Massive, genuinely helpful community.

If you own more than a handful of smart devices from different brands, this is the project that makes them one system — on your terms.