Erlangs documentation is fine. It's not 'modern', but it is actually quite good. There is a lot of it though and it isn't newbie friendly, which is a niche filled by some excellent books out there, for instance the (free!) Learn You Some Erlang website/book: https://learnyousomeerlang.com/

I find it frustrating how often on Hackernews people jump into the middle of a conversation as if the beginning of the conversation never happened.

From the top level comment:

> To be blunt, I really dreaded needing to jump to the Erlang documentation,