Scrypted

Scrypted is a home automation platform for power users and developers.

Scrypted integrates with the three major home hubs. Control your things with via voice or your preferred app, whether it is Google Home, Apple HomeKit, or Amazon Alexa.

Scrypted can be extended with JavaScript plugins: write scripts that contol your things or add support for entirely new devices. You creations will be synced with whatever cloud provider, no fuss.