Shopify made the new Ruby JIT compiler. [0] They're on the Rails Foundation, as is 1Password, among others. Stripe is still in on Ruby too; they're behind the

Shopify made the new Ruby JIT compiler. [0] They're on the Rails Foundation, as is 1Password, among others. Stripe is still in on Ruby too; they're behind the Sorbet gradual type system, and Ruby is a first-class language for working with their API. I always hear the stereotype of companies starting on Rails and migrating later, and I think it sticks around because it makes some level of intuitive sense, but it doesn't actually appear to happen all that often. I guess successful companies don't see the need to rewrite a successful codebase when they can just put good engineers to work on optimising it instead. [0] https://shopify.engineering/ruby-yjit-is-production-ready https://shopify.engineering/ruby-yjit-is-production-ready