Alexa open my garage

Here’s the FAQ for associating a virtual switch with a routine and having echo control it.

If you use Alexa helper to set up the Association, you can have turning on a binary switch execute routine a, and turning off the same switch execute routine B, which is a voice command format that a lot of people return prefer. So you can say “open the garage” and “close the garage” and it should run the two routines appropriately.