I wrote a short answer here: https://news.ycombinator.com/item?id=12890552

If you like go's conc stuff, then I'm sure you'll love Perl 6's async/conc/paralel. stuff: https://docs.perl6.org/language/concurrency#High-level_APIs

I wrote an IRC API with Perl 6 that I really love, since it makes it so easy for me to parallelize a plugin's work, while working with an async protocol, all the while connected to multiple servers, all with the same short script: http://perl6.party/post/IRC-Client-Perl-6-Multi-Server-IRC-M...