Elixir is quirky and the functional aspects especially take getting used to (eg the learning guides say you should rarely write for loops), but the runtime and some of these amazing tools really show the potential. I don’t know if I’ll ever use it professionally (I hope so, honestly) but I think I’ll learn something that’ll make me better regardless.
LiveView has such a unique and refreshing take on web-dev (I say having never written any significant amount of HTML), that seems to make it behave much more like a local application. And LiveBook builds on that to be a next-gen alternative to Jupiter notebooks. I can totally imagine live book expanding into a more general purpose interactive playground type tool.. good for internal tools and dashboard and development experiments… almost a WebUI alternative to a REPL. I feel like all that’s missing is being able to inject/attach to an existing VM.