Elixir turned out to be an awesome solution for this sort of product for two reasons. It made creating a purpose-built WebSocket API a joyful experience. It also allowed us to leverage its unique binary handling capabilities to handle a goofy protocol easily and present it in a Javascript digestible format to our browser clients. Check out our code here: https://github.com/pluralsh/plural How we built it: https://www.plural.sh/blog/how-we-created-an-in-browser-kubernetes-experience/