alt Hacker NewsCorrect me if I'm wrong but a big part of the value proposition these days for Erlang/Elixir would be that it comes build in with a lot of the tools that other runtimes would require. For example a message bus is kinda integrated in the BEAM runtime or Erlang, while most other runtimes would have to use something like Kafka or AWS SQS etc. Or caching and some other things. Of course I'm not sure how good all the inbuilt solutions are compared to dedicated tools, overall or usually IMHO I prefer dedicated tools as opposed to all in one as the dedicated tools/services usually are more flexible. On the other hand of course it is also much overhead.
> a message bus is kinda integrated in the BEAM runtime or Erlang
You have that on a single node. If you need to run more than one node, you will end up inventing your own on top of mnesia and usually the results are not spectacular or/and you will end up paying happihacking to do it for you. Or one of the other Erlang oldtimers who you can count on the fingers of your hands.
This is really suboptimal compared to what you can achieve by using any normal language + any message bus. You are actually much better using a proper message bus even if you use Erlang.