Looking thru the Ruby Weekly newsletter https://rubyweekly.com/ there was these:
Top five reasons for Rubyist to use Crystal
and then the Rustacean foray for mindshare Rust for Rubyists:
https://matthias-endler.de/2017/rust-for-rubyists/?utm_source=rubyweekly&utm_medium=email
The article which really spiked my interest in Nim (coming from Ruby) is from July 2017 below:
Nim for the discerning Rubyist
http://www.bootstrap.me.uk/bootstrapped-blog/nim-for-the-discerning-rubyist
It would be really nice to have more of these articles to show Rubyist how to use Nim to their advantage.
It would also be really nice to have a Nim Weekly newsletter too.
I have some things I could possibly contribute. Something to work toward.
Nim Weekly
This seems like too short period to get enough relevant/interesting stuff, but (once v1.0 is out) "Nim Monthly" might be a good idea!