Disclosure: I made this.
DoSync is an Android app where you type or say what you want (“lower the living room shades to 30 %”, “is anything still on?”) and it does it. With a Homey Pro (2023 or newer) it uses the local Web API with an API key you create in Homey, so it works on your Wi-Fi without any cloud of mine. Zones come in as rooms, and Homey sensors (temperature, humidity, water, door, motion) can be used in routines.
It’s a beta. I tested the Homey part against a simulator built from the API docs, not a real Homey, so I’d really value a report from someone who has one.
If you wish, you can download it directly from its repository: GitHub - giulianireg-spec/dosync-app-beta: DoSync App · beta abierta: descarga gratis la app para Android que maneja tu casa con tus palabras. Opiniones bienvenidas. · GitHub