Is there any roller blinds motor that is directly compatible with homey(with app or zigbee/z-wave)? to make existing blinds smart. 
Axis Gear
Soma Smart Shade
thanks 
but tuya,diya or zemismart (the cheap ones on aliexpress) is not supported then 
I don’t know… 
Maybe tuya via the cloud version?
But i don’t have them so don’t know for sure.
I’ve read (going through my Google search results) Tuya Smart Life disable their connection with IFTTT but also reconnected it since the end of June.
I assume you can add your Tuya device to IFTTT and create a trigger which is send by Homey. This way you should make it possible to let IFTTT control your Tuya device
