This is  a easy and powerful way of creating QuickAppChildren. Repo:  Please login or register to see this link.   The advantages of using the library is: 1. It's a reusable library reducing the amount of code needed to load/init/create children. 2. It has it's own child loader allowing to have different QuickAppChild classes mapped to the same fiber device type (not allowed by Fibaro's standard implementation) 3. Support for template definition of custom child UIs 4. Support