About Speaker
Ping-Husn "penk" Chen, a full-stack engineer from Taiwan. I design and implement user interfaces, also maintain open source projects in my spare time.
About the Topic
Terrarium (http://www.terrariumapp.com) is an open source interactive UI prototyping tool designed for coders like you and me. It consists a full featured QtQuick runtime, a live previewer, an editor, and lots of touch screen enhancements for mobile devices.