It's too bad Ruby isn't seen as 'cool' anymore, it's just so easy to be productive in it. And now MJIT, YJIT and TruffleRuby are making some very impressive performance gains. Rails is also better than ever and I still can't think of a better language for scripting.
I've had my own personal Advent of Code these holidays, coding a small API for a personal need. Ruby (Sinatra) took one morning to full deployment in Heroku. Then I tried Crystal (Kemal) and it took me a couple of days to figure out how to map JSON to Crystal data structures. Then I rewrote it again in Rust (Rocket). Two weeks till I figured out, well, almost everything.
My opinion: they will take dynamic typing from my dead cold hands.