Earlier quoted context omitted.
Well, for instance I currently have a talk mostly assembled which would cover the way in which our team architected a system to allow small components of a complex stateful system to be deployed independently with minimal risk to the other components of the system. This could be classified under "Devops" or "System Architecture".
Okay, so if you had to summarise the lessons learned from overcoming the challenges you faced, what would you say they were?
* Doing so in a way that still allows your entire app to appear to be a coherent whole is tricky.