For all of you who have them, check these out:
Sensibo

They’re smart transmitters for ductless AC units. Connects to Alexa, Siri and an iPhone/Android app that you can control from instead of just the remote. You can put it on a schedule, turn it on/off when you’re not at home, etc. We just bought them and i'm so excited to get them because we use alexa for everything lol... I like that I can control DD's AC when she's sleeping without having to go in her room too

Anyway, I got a 17% off coupon to share in that link above. On amazon, they're like $119 each I think.