As a Docker Core Team member, I use Docker daily. This includes running Docker on my laptop (which is a Debian host). I containerize various desktop apps and try to run everything in containers. This would be a pretty obscure in nature talk. Most people only think of containers as production apps, but you can actually run most applications and GUIs even in containers by bind mounting the X11 socket. A lot of operating systems are coming to form with "running everything in containers" like project atomic and ubuntu core. This would be an interesting look on the fact you could actually use one of those distros for your desktop by containerizing GUIs. If you can run it on your normal distro you can containerize it, and this talk will prove that.
Most recently I put steam (OpenGL) in a container to play video games.