私人
https://webapi.syncroom.appservice.yamaha.com/launch_app?roomName=Letty&roomId=ee50fce1-d051-4137-84f0-eb8ce068ef04&requirePassword=0 / Letty's cas.
https://webapi.syncroom.appservice.yamaha.com/launch_app?roomName=Letty&roomId=ee50fce1-d051-4137-84f0-eb8ce068ef04&requirePassword=0