Phoenix/LiveView must be really good if people are learning not one but two niche languages (Elixir and Erlang) just to use it.
I wonder if the framework is particularly tied to Elixir or if it could be done in a more popular language so more people will take it up.
edit: and yes I know WhatsApp was/is written in Erlang, just to save you commenting.
Here you go – a list of LiveView workalikes: https://github.com/liveviews/liveviews