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All of which are tiny niche languages, except Elixir...

I actually think think BEAM gaining the ability to run WASM would be a smart development.

It would make using high performance C/C++/Rust code much easier than the NIF/Ports hassle, with much better sandboxing and scheduling control for the VM.

If they also add WASM actors on top it could expand the interest significantly.

OTP has decades of tuning and improvements that will be hard to match in other projects like this.

"Supports" and "ready for production" are two entirely different things.

And you can always feel the Erlang in them (though that's not a bad thing).

I just checked, and I don't know any of them....to tell you the truth, I haven't even heared of them, except Elixir which I heared is a modern version of Erlang.

So? You probably haven't heard of 95% of the languages that has existed and exist. They're niche languages, just like the VM they run on and this doesn't mean they're half-baked like JavaScript which you've heard of.

Actually I looked at some, and they look half baked experimental languages to me. Right now I'm using Python, because PyTorch is written in Python (and C++), not because it's my favourite language. For me library support is more important than the language itself actually.