a) Shopify has been deployed to the cloud since day one. b) They run multiple app servers so each component can in fact be scaled separately. c) They built th

a) Shopify has been deployed to the cloud since day one. b) They run multiple app servers so each component can in fact be scaled separately. c) They built their own PaaS which runs on Kubernetes. d) You would have to be utterly incompetent to not care about optimising costs. But I am glad we both agree that Shopify is doing a great job running a sane stack.