ComMaid is a communication aid for people who are unable or unwilling to speak. It is useful for both Deaf and non-Deaf people, such as people with situational mutism, or anyone who prefers typing over talking.
You can use ComMaid offline without creating a room. If you create a room, you can share the link to allow others to see what you are typing in real time.
The name "ComMaid" sounds similar to "comm aid", i.e., communication aid. You can also think of it as a "maid" who helps you communicate.