Great, let's keep in touch and see if we can find some way to work together in 2019.
I immediately had an idea. I've recently been investigating a technology called Scuttlebutt. Basically, it's a technology that makes it possible to have a social network (or any other data) which is fully encrypted and both accessible online and offline. It's described pretty well in this post.
My thinking is this. Refugees who are on the move need information that is up to date and a way to connect with each other. However, they might not always have data coverage or wifi, although they have smartphones. It would be good if refugee A (who has no wifi for a week) could get all the data and info that refugee B has (who has had wifi recently but not now).
With a technology like Scuttlebutt, this is possible by letting person A connect with the device of person B and get all the updated information (including any personal messages to person A, which person B will then have on encryped on their device and are unable to access). It's a bit hard to explain in short terms, but this is operational technology. In fact, I recently connected with @alberto on Scuttlebutt Patchwork.