I think you mean "scale out" [1]? These days, it shouldn't really require a rearchitecting of a system. Almost all modern web frameworks are designed to be stat

I think you mean "scale out" [1]? These days, it shouldn't really require a rearchitecting of a system. Almost all modern web frameworks are designed to be stateless anyway, externalizing ownership of state to databases and other services (themselves stateless APIs to databases). [1] https://en.wikipedia.org/wiki/Scalability#Horizontal_and_vertical_scaling https://en.wikipedia.org/wiki/Scalability#Horizontal_and_ver...