I find it faschinating how much Shopify has invested in Ruby / Rails, at what point will Shopify just merge with the Ruby Team?
Probably never. DHH wants to keep Rails small enough that a 1 person founder can use it and be productive with it. Shopify is already massive and some of their projects are taking them in a different direction than DHH wants for Rails. For example, Liquid templates (which are intentionally less powerful than ERB since they're designed to be used by Shopify store owners) and Sorbet (DHH hates types).
Their pet web framework remix is also quite underfunded compared to Next.js