I'm also just a user of this awesome software like you. I stumbled upon it when I was looking for a live chat solution for one of my projects.
Your appreciation should go to the current developers of Mibew for their hard work, @faf and @Dmitriy Simushev. I started using Mibew when they were transitioning the project from version 1.6.x to version 2.x
Putting my developer's hat on I have since been invested in the project, creating the
Wurrd app to respond to my customers on the go. Wurrd is now available for Android and iOS.
Eyong