Complete noob here and maybe this isn’t “home automation” so I apologize in advance.

I have a specific use case: I need to be able to alert anyone inside my garage that it’s about to be opened, with time to get out of the way. I want someone driving up to be able to ring a sound inside the garage before opening the garage door from the car. (if it could be one action: hit the remote, bell rings, pause, then door opens, that would be ideal)

No amount of googling search terms has yet returned any useful results, unfortunately. I am open to using something like Alexa or Siri to make the sound/action if I could find the ringer needed.

My garage door opener is Chamberlain, but I don’t have MyQ installed - I don’t find that it has any ringer/bell function anyway. Maybe I just don’t know the right lingo for this? Thanks for any ideas and guidance!