Hello,
I'm interested in the UX topic. However, I wonder what the focus of the suggested session is. "Building a sustainable user experience together" can suggest different topics depending on what we want to focus on: Is sustainable meant to be "timeless" or "technically easy to maintain"? Does "together" mean that we want to find ways to collaborate closer with volunteers or is it meant to focus on collaborating between different disciplines like Visual, Interaction design, front-end-dev?
I find all these valid and important, but I suppose we are only able to focus on a few of these possible points. Also, there might be some expectation what the most pressing problems are.