Why not just create an Alexa “Routine” which turns on your curtains? If you haven’t explored Alexa Routines, you really should as they allow
- More natural language
- a sequence of events to be fired.
You can also mix and match firing events from different Smart Home Skills provider. For example, currently I have a “Good Morning” Alexa Routine that manipulates a Logitech Harmony Hub, a SmartThings Light, and some Hubitat Lights.