I have been working on a demo app to learn how Elixir works and how it would be to work on a Phoenix app. In particular its realtime capabilities using Channels, an abstraction on top of websockets.
The Phoenix Framework highlights its ability to scale and enables realtime connectivity so trying out a Twitter integration based on geolocation seemed a good fit to get my hands dirty.
It has been a good excuse to get to know better the fantastic Leaflet interactive map library.
You can find the demo here, where the implementation is described in more detail.