Webdeck has been aware for a while that I was writing a companion app to his plugin, you can find it here..
Webdeck, thanks for all your input, I know we have a few pending things (like integrated installation) to wrap up and hopefully my development time will be a bit more available for a little bit and we can wrap those things up. And thanks for extending Homebridge to Indigo - it's almost exclusively how I control my house now!