Home Assistant
https://www.home-assistant.ioHome Assistant keeps your data local, no need for a cloud. Home Assistant communicates with your devices locally, and will fallback to pulling in data from the cloud if there is no other option. No data is stored in the cloud, and everything is processed locally.
Windows - Home Assistant
https://www.home-assistant.io/installation/windowsInstall Home Assistant Core Install WSL. To install Home Assistant Core on Windows, you will need to use the Windows Subsystem for Linux (WSL). Follow the WSL installation instructions and install Ubuntu from the Windows Store. As an alternative, Home Assistant OS can be installed in a Linux guest VM.